Resources
I have been asked several times now about my research and resources on various topics. I intend to eventually convert all of my resource lists to a format that I can post here (one category at a time). Understand that I have not yet used each of these items, as often I collect things that might be before or after my chosen time period or that might not fill my immediate needs once I do read it. This list is not yet complete will be continually evolving and I will add more categories each week. Eventually I hope to add notes concerning different resources.
Sheep and Wool Research
ldred, Oscar, ‘Mobile Communities: The Gathering and Sorting of Sheep in Skútustaðarhreppur, Northeast Iceland’, International Journal of Historical Archaeology, 16 (2012), 488–508
Barrett, James, Allan Hall, Cluny Johnstone, Harry Kenward, O Connor, and Steve Ashby, ‘Plant and Animal Remains from Viking Age Deposits at Kaupang, Norway’, Reports from the Center of Human Palaeoecology, 2004
Barrett, James; et al, ‘Interpreting the Plant and Animal Remains from Viking-Age Kaupang’, 2003, 283–319
‘BBC News - Protected Status for Lakeland Herdwick Sheep’ <http://www.bbc.com/news/uk-england-cumbria-22556372> [accessed 26 June 2014]
Bowles, Dianna, Amanda Carson, and Peter Isaac, ‘Genetic Distinctiveness of the Herdwick Sheep Breed and Two Other Locally Adapted Hill Breeds of the UK.’, PloS one, 9 (2014), e87823
Brandt, Luise Ørsted, Lena Diana Tranekjer, Ulla Mannering, Maj Ringgaard, Karin Margarita Frei, Eske Willerslev, and others, ‘Characterising the Potential of Sheep Wool for Ancient DNA Analyses’, Archaeological and Anthropological Sciences, 3 (2011), 209–221
‘Breeds of Livestock - Oklahoma State University’ <http://www.ansi.okstate.edu/breeds/> [accessed 23 April 2014]
Burns, Marca. “The development of the fleece and follicle population in Herdwick Sheep.” The Journal of Agricultural Science, Volume 44, Issue 4. Cambridge University Press, 1954.
Chessa, B, F. Pereira, and et al, ‘REVEALING THE HISTORY OF SHEEP DOMESTICATION USING’, Science, 324 (2009), 532–536 <doi:10.1126/science.1170587.REVEALING>
Christiansen, Carol A, ‘A Reanalysis of Fleece Evolution Studies’, NESAT 8: Report from the 8th North European Symposium for Archaeological Textiles May 2002, Poland, 2004, 11–18
Crabtree, Pam J., ‘Agricultural Innovation and Socio-Economic Change in Early Medieval Europe: Evidence from Britain and France’, World Archaeology, 42 (2010), 122–136
Crabtree, Pam J., Middle Saxon Animal Husbandry in East Anglia (East Anglian Archaeology), 2012
Crabtree, Pam J., ‘Production and Consumption in an Early Complex Society: Animal Use in Middle Saxon East Anglia’, World Archaeology, 28 (1) (1996), 58–75
CURLE, James, ‘A ROMAN FRONTIER POST AND ITS PEOPLE: The Fort of Newstead in the Parish of Melrose’, 1911 <http://www.curlesnewstead.org.uk/373.htm>
D’Arcy, J. B., Sheep Management and Wool Technology (UNSW Press, 1990)
Dohner, Janet Vorwald. The Encyclopedia of Historic and Endangered Livestock and Poultry Breeds. Yale University Press, 2001.
Dýrmundsson, O R, and R Niżnikowski, ‘North European Short-Tailed Breeds of Sheep: A Review.’, Animal : an international journal of animal bioscience, 4 (2010), 1275–82
Dýrmundsson, Ólafur R., ‘Sustainability of Sheep and Goat Production in North European countries—From the Arctic to the Alps’, Small Ruminant Research, 2006, 151–157
Ekarius, Carol, and Deborah Robson, The Field Guide to Fleece: 100 Sheep Breeds & How to Use Their Fibers (Storey Publishing, LLC, 2013)
Ekarius, Carol and Robson, Deborah. The Fleece & Fiber Sourcebook: More Than 200 Fibers, from Animal to Spun Yarn. Storey Publishing, LLC, 2011.
Farming, Sheep, and Pastoral Life, ‘INTRODUCTION AND HISTORY OF SHEEP FARMING IN THE UK Estonian University of Life Sciences’, 11 (2013)
Frei, Karin Margarita, ‘Textiles, Wool, Sheep, Soil and Strontium’, North European Symposium for Archaeological Textiles X, 10 (2009)
Gifford-Gonzalez, Diane, and Olivier Hanotte, ‘Domesticating Animals in Africa: Implications of Genetic and Archaeological Findings’, Journal of World Prehistory, 24 (2011), 1–23
Gizaw, Solomon, H. Komen, O. Hanotte, J.A.M. Van Arendonk, S. Kemp, Aynalem Haile, and others, Characterization and Conservation of Indigenous Sheep Genetic Resources: A Practical Framework for Developing Countries (ILRI (aka ILCA and ILRAD), 2011)
‘Gotland Sheep Color Discussion’ <http://everranch.com/Farm/Sheep/Gotlands/P06GotlandColor.htm> [accessed 5 May 2014]
Greenfield, Haskel J., ‘The Secondary Products Revolution: The Past, the Present and the Future’, World Archaeology, 42 (2010), 29–54
Hall, Stephen J. G., Two Hundred Years of British Farm Livestock (British Museum of Natural, 1988)
Hattson, Grace, ‘Fiber Basics: Finnsheep’, Spin-Off, 2005 http://www.finnsheep.org/finnsheep-in-print/finnsheep-in-spin-off/
Helle, Knut. Cambridge History of Scandinavia, Volume 1 (Cambridge University Press), 2003.
Herdwick Sheep Breeders Association: http://www.herdwick-sheep.com/
The Herdy Company Blog. http://www.herdy.co.uk
Hersteinsson, Pall, ‘Mammals of the Thingvallavatn Area’, Oikos, 64 (1992), 396–404 <http://www.jstor.org/stable/10.2307/3545061>
Holman, B W B, and a E O Malau-Aduli, ‘A Review of Sheep Wool Quality Traits’, Annual Review & Research in Biology, 2 (2012), 1–14
Jamroziak, Emilia, ‘Rievaulx Abbey as a Wool Producer in the Late Thirteenth Century: Cistercians, Sheep and Debts’, Northern History, XL (2003)
Jamshed Khan, Muhammad, ‘Factors Affecting Wool Quality and Quantity in Sheep’, African Journal of Biotechnology, 11 (2012), 13761–13766
Jennbert, Kristina, ‘Old Norse Religion in Long-Term Perspectives: Origins, Changes, and Interactions’
Jennbert, Kristina, ‘Sheep and Goats in Norse Paganism’, 2004, 160–166
Mainland, Ingrid, and Paul Halstead, ‘The Economics of Sheep and Goat Husbandry in Norse Greenland’, Arctic anthropology, 42 (2005), 103–120
Marciniak, Arkadiusz, ‘The Secondary Products Revolution: Empirical Evidence and Its Current Zooarchaeological Critique’, Journal of World Prehistory, 24 (2011), 117–130
Meadows, Jennifer R S, Ibrahim Cemal, Orhan Karaca, Elisha Gootwine, and James W Kijas, ‘Five Ovine Mitochondrial Lineages Identified from Sheep Breeds of the near East.’, Genetics, 175 (2007), 1371–9
Munro, John, ‘Wool and Wool Based Textiles in the West Europe Economy, c.800 - 1500’, 2001
‘New Study Rewrites Genetic History of Sheep’, Phys.Org, 2015 <http://phys.org/news/2015-09-rewrites-genetic-history-sheep.html>
Niżnikowski, R., and Ó. R. Dýrmundsson, ‘North European Short-Tailed Breeds of Sheep: A Review’, animal, 2010, 1275–1282
Oklahoma State University. “Breeds of Livestock Project”. www.ansi.okstate.edu/breeds/sheep/
Orsted Brandt, Luise, et al. “Characterising the potential of sheep wool for ancient DNA analyses”, Archaeol Anthropol Science, 2011.
Ostergaard, Else. Woven into the Earth: Textile finds in Norse Greenland (Aarhus University Press), 2004.
Piggot, Stuart and Thirsk, Joan. The Agrarian History of England and Wales: Volume 1, Prehistory to AD 1042. Cambridge University Press, 2011.
Poole, Kristopher, ‘More than Just Meat’, in Everyday Life in Viking-Age Towns: Social Approaches to Towns in England and Ireland, c. 800-1100 [Hardback], 2013, p. 272
‘Roman Bronze Figure of a Sheep’ <http://miniaturesinancientart.com/RomanBronzeFigureofaSheepLA534.html>
Ross, Julie M, and Cynthia Zutter, ‘Comparing Norse Animal Husbandry Practices: Paleoethnobotanical Analyses from Iceland and Greenland’, Artic Anthropology, 44 (2007), 62–86
Rast-Eicher, A., & Bender Jørgensen, L. (2013). Sheep wool in Bronze Age and Iron Age Europe. Journal of Archaeological Science, 40(2), 1224–1241. http://doi.org/10.1016/j.jas.2012.09.030
Ryder, ML, ‘A Survey of European Primitive Breeds of Sheep.’, Annales de génétique et de sélection animale, 13 (1981), 381–418
Ryder, ML, ‘Some Observations on the Glycogen of the Wool Follicle’, Quarterly Journal of Microscopy Science, 99 (1958), 221–228
Ryder, ML, ‘European Wool Types from the Iron Age to the Middle Ages’, NESAT I
Ryder, ML, Sheep & Man (Duckworth, 1983) <http://books.google.com/books/about/Sheep_Man.html?id=bJkiAQAAMAAJ&pgis=1> [accessed 23 April 2014]
Ryder, ML, ‘Changes in the Fleece of Sheep Following Domestication (with a Note on the Coat of Cattle)’, The Domesitcation and Exploitation of Plants and Animals, 1969
Ryder, ML, ‘Coat Structure in Soay Sheep’, Nature, 211 (1966), 1092–1093
Ryder, ML, ‘Medieval Sheep and Wool Types’, The Agricultural History Review, 1984 <http://www.jstor.org/stable/10.2307/40274301>
Ryder, ML, Sheep & Man. Gerald Duckworth & Co., 1983.
Ryder, ML, ‘The Fibres in Textile Remains from the Iron Age Salt-Mines at Hallstatt , Austria’, Ann. Naturhist. Mus. Wien, 102 A (2001), 223–244
Ryder, ML, "A Survey of European Primitive Breeds of Sheep," Annales de Génétique et de Sélection Animale. 13, no. 4: 381−418, 1981
Ryder, ML, ‘The History of Sheep Breeds in Britain’, The Agricultural History Review, 1964 <http://www.jstor.org/stable/10.2307/40273081>
Ryder, ML, ‘The Human Development of Different Fleece-Types in Sheep and Its Association with the Development of Textile Crafts’, Northern archaeological textiles: NESAT VII: textile symposium in Edinburgh, 5th-7th May 1999, 1999, 122–128
‘Sarcòfag Bucòlic, Museo Nazionale Romano Nelle Terme Di Diocleziano, Roma’ <http://www.flickr.com/photos/sebastiagiralt/4326785572/>
‘Scientists Shine Spotlight on Herdwick Sheep Origins -- ScienceDaily’ <http://www.sciencedaily.com/releases/2014/01/140129184656.htm>
‘Sheep, Plutei of Trajan, Basilica Aemilia, Roman Forum. (Photo ID 17763-Rome)’ http://www.eveandersson.com/photo-display/large/italy/rome-roman-forum-palatine-hill-area-aemilia-basilica-plutei-of-trajan-sheep.html
Skansen Open-air Museum. http://www.skansen.se/sv/artikel/asenfar
Stephenson, M. J., ‘Wool Yields in the Medieval Economy’, Economic History Review, 41 (1988), 368–391 <http://www.jstor.org/stable/2597366>
Sveinbjarnardottir-dignum, By Stefania, ‘THE FASCINATING COLOUR AND PATTERN GENETICS OF THE ICELANDIC SHEEP .’, 1994, 10–15
Thomas, D. L., ‘Performance and Utilization of Northern European Short-Tailed Breeds of Sheep and Their Crosses in North America: A Review’, animal, 2010, 1283–1296
Vedeler, Marianne, and Lise Bender Jørgensen, ‘Out of the Norwegian Glaciers : Lendbreen — a Tunic from the Early First Millennium AD’, 87 (2013), 788–801
Visit Cumbria. http://www.visitcumbria.com/herdwick-sheep/
Walton Rogers, Penelope, ‘Textiles, Cordage and Raw Fibre from 16-22 Coppergate’, 1989
Wigh, Bengt, Excavations in the Black Earth 1990-95 : Animal Husbandry in the Viking Age Town of Birka and Its Hinterland, 2001
Wrightson, John. Sheep: Breeds and Management. Vinton Publishing, 1898.
Barrett, James, Allan Hall, Cluny Johnstone, Harry Kenward, O Connor, and Steve Ashby, ‘Plant and Animal Remains from Viking Age Deposits at Kaupang, Norway’, Reports from the Center of Human Palaeoecology, 2004
Barrett, James; et al, ‘Interpreting the Plant and Animal Remains from Viking-Age Kaupang’, 2003, 283–319
‘BBC News - Protected Status for Lakeland Herdwick Sheep’ <http://www.bbc.com/news/uk-england-cumbria-22556372> [accessed 26 June 2014]
Bowles, Dianna, Amanda Carson, and Peter Isaac, ‘Genetic Distinctiveness of the Herdwick Sheep Breed and Two Other Locally Adapted Hill Breeds of the UK.’, PloS one, 9 (2014), e87823
Brandt, Luise Ørsted, Lena Diana Tranekjer, Ulla Mannering, Maj Ringgaard, Karin Margarita Frei, Eske Willerslev, and others, ‘Characterising the Potential of Sheep Wool for Ancient DNA Analyses’, Archaeological and Anthropological Sciences, 3 (2011), 209–221
‘Breeds of Livestock - Oklahoma State University’ <http://www.ansi.okstate.edu/breeds/> [accessed 23 April 2014]
Burns, Marca. “The development of the fleece and follicle population in Herdwick Sheep.” The Journal of Agricultural Science, Volume 44, Issue 4. Cambridge University Press, 1954.
Chessa, B, F. Pereira, and et al, ‘REVEALING THE HISTORY OF SHEEP DOMESTICATION USING’, Science, 324 (2009), 532–536 <doi:10.1126/science.1170587.REVEALING>
Christiansen, Carol A, ‘A Reanalysis of Fleece Evolution Studies’, NESAT 8: Report from the 8th North European Symposium for Archaeological Textiles May 2002, Poland, 2004, 11–18
Crabtree, Pam J., ‘Agricultural Innovation and Socio-Economic Change in Early Medieval Europe: Evidence from Britain and France’, World Archaeology, 42 (2010), 122–136
Crabtree, Pam J., Middle Saxon Animal Husbandry in East Anglia (East Anglian Archaeology), 2012
Crabtree, Pam J., ‘Production and Consumption in an Early Complex Society: Animal Use in Middle Saxon East Anglia’, World Archaeology, 28 (1) (1996), 58–75
CURLE, James, ‘A ROMAN FRONTIER POST AND ITS PEOPLE: The Fort of Newstead in the Parish of Melrose’, 1911 <http://www.curlesnewstead.org.uk/373.htm>
D’Arcy, J. B., Sheep Management and Wool Technology (UNSW Press, 1990)
Dohner, Janet Vorwald. The Encyclopedia of Historic and Endangered Livestock and Poultry Breeds. Yale University Press, 2001.
Dýrmundsson, O R, and R Niżnikowski, ‘North European Short-Tailed Breeds of Sheep: A Review.’, Animal : an international journal of animal bioscience, 4 (2010), 1275–82
Dýrmundsson, Ólafur R., ‘Sustainability of Sheep and Goat Production in North European countries—From the Arctic to the Alps’, Small Ruminant Research, 2006, 151–157
Ekarius, Carol, and Deborah Robson, The Field Guide to Fleece: 100 Sheep Breeds & How to Use Their Fibers (Storey Publishing, LLC, 2013)
Ekarius, Carol and Robson, Deborah. The Fleece & Fiber Sourcebook: More Than 200 Fibers, from Animal to Spun Yarn. Storey Publishing, LLC, 2011.
Farming, Sheep, and Pastoral Life, ‘INTRODUCTION AND HISTORY OF SHEEP FARMING IN THE UK Estonian University of Life Sciences’, 11 (2013)
Frei, Karin Margarita, ‘Textiles, Wool, Sheep, Soil and Strontium’, North European Symposium for Archaeological Textiles X, 10 (2009)
Gifford-Gonzalez, Diane, and Olivier Hanotte, ‘Domesticating Animals in Africa: Implications of Genetic and Archaeological Findings’, Journal of World Prehistory, 24 (2011), 1–23
Gizaw, Solomon, H. Komen, O. Hanotte, J.A.M. Van Arendonk, S. Kemp, Aynalem Haile, and others, Characterization and Conservation of Indigenous Sheep Genetic Resources: A Practical Framework for Developing Countries (ILRI (aka ILCA and ILRAD), 2011)
‘Gotland Sheep Color Discussion’ <http://everranch.com/Farm/Sheep/Gotlands/P06GotlandColor.htm> [accessed 5 May 2014]
Greenfield, Haskel J., ‘The Secondary Products Revolution: The Past, the Present and the Future’, World Archaeology, 42 (2010), 29–54
Hall, Stephen J. G., Two Hundred Years of British Farm Livestock (British Museum of Natural, 1988)
Hattson, Grace, ‘Fiber Basics: Finnsheep’, Spin-Off, 2005 http://www.finnsheep.org/finnsheep-in-print/finnsheep-in-spin-off/
Helle, Knut. Cambridge History of Scandinavia, Volume 1 (Cambridge University Press), 2003.
Herdwick Sheep Breeders Association: http://www.herdwick-sheep.com/
The Herdy Company Blog. http://www.herdy.co.uk
Hersteinsson, Pall, ‘Mammals of the Thingvallavatn Area’, Oikos, 64 (1992), 396–404 <http://www.jstor.org/stable/10.2307/3545061>
Holman, B W B, and a E O Malau-Aduli, ‘A Review of Sheep Wool Quality Traits’, Annual Review & Research in Biology, 2 (2012), 1–14
Jamroziak, Emilia, ‘Rievaulx Abbey as a Wool Producer in the Late Thirteenth Century: Cistercians, Sheep and Debts’, Northern History, XL (2003)
Jamshed Khan, Muhammad, ‘Factors Affecting Wool Quality and Quantity in Sheep’, African Journal of Biotechnology, 11 (2012), 13761–13766
Jennbert, Kristina, ‘Old Norse Religion in Long-Term Perspectives: Origins, Changes, and Interactions’
Jennbert, Kristina, ‘Sheep and Goats in Norse Paganism’, 2004, 160–166
Mainland, Ingrid, and Paul Halstead, ‘The Economics of Sheep and Goat Husbandry in Norse Greenland’, Arctic anthropology, 42 (2005), 103–120
Marciniak, Arkadiusz, ‘The Secondary Products Revolution: Empirical Evidence and Its Current Zooarchaeological Critique’, Journal of World Prehistory, 24 (2011), 117–130
Meadows, Jennifer R S, Ibrahim Cemal, Orhan Karaca, Elisha Gootwine, and James W Kijas, ‘Five Ovine Mitochondrial Lineages Identified from Sheep Breeds of the near East.’, Genetics, 175 (2007), 1371–9
Munro, John, ‘Wool and Wool Based Textiles in the West Europe Economy, c.800 - 1500’, 2001
‘New Study Rewrites Genetic History of Sheep’, Phys.Org, 2015 <http://phys.org/news/2015-09-rewrites-genetic-history-sheep.html>
Niżnikowski, R., and Ó. R. Dýrmundsson, ‘North European Short-Tailed Breeds of Sheep: A Review’, animal, 2010, 1275–1282
Oklahoma State University. “Breeds of Livestock Project”. www.ansi.okstate.edu/breeds/sheep/
Orsted Brandt, Luise, et al. “Characterising the potential of sheep wool for ancient DNA analyses”, Archaeol Anthropol Science, 2011.
Ostergaard, Else. Woven into the Earth: Textile finds in Norse Greenland (Aarhus University Press), 2004.
Piggot, Stuart and Thirsk, Joan. The Agrarian History of England and Wales: Volume 1, Prehistory to AD 1042. Cambridge University Press, 2011.
Poole, Kristopher, ‘More than Just Meat’, in Everyday Life in Viking-Age Towns: Social Approaches to Towns in England and Ireland, c. 800-1100 [Hardback], 2013, p. 272
‘Roman Bronze Figure of a Sheep’ <http://miniaturesinancientart.com/RomanBronzeFigureofaSheepLA534.html>
Ross, Julie M, and Cynthia Zutter, ‘Comparing Norse Animal Husbandry Practices: Paleoethnobotanical Analyses from Iceland and Greenland’, Artic Anthropology, 44 (2007), 62–86
Rast-Eicher, A., & Bender Jørgensen, L. (2013). Sheep wool in Bronze Age and Iron Age Europe. Journal of Archaeological Science, 40(2), 1224–1241. http://doi.org/10.1016/j.jas.2012.09.030
Ryder, ML, ‘A Survey of European Primitive Breeds of Sheep.’, Annales de génétique et de sélection animale, 13 (1981), 381–418
Ryder, ML, ‘Some Observations on the Glycogen of the Wool Follicle’, Quarterly Journal of Microscopy Science, 99 (1958), 221–228
Ryder, ML, ‘European Wool Types from the Iron Age to the Middle Ages’, NESAT I
Ryder, ML, Sheep & Man (Duckworth, 1983) <http://books.google.com/books/about/Sheep_Man.html?id=bJkiAQAAMAAJ&pgis=1> [accessed 23 April 2014]
Ryder, ML, ‘Changes in the Fleece of Sheep Following Domestication (with a Note on the Coat of Cattle)’, The Domesitcation and Exploitation of Plants and Animals, 1969
Ryder, ML, ‘Coat Structure in Soay Sheep’, Nature, 211 (1966), 1092–1093
Ryder, ML, ‘Medieval Sheep and Wool Types’, The Agricultural History Review, 1984 <http://www.jstor.org/stable/10.2307/40274301>
Ryder, ML, Sheep & Man. Gerald Duckworth & Co., 1983.
Ryder, ML, ‘The Fibres in Textile Remains from the Iron Age Salt-Mines at Hallstatt , Austria’, Ann. Naturhist. Mus. Wien, 102 A (2001), 223–244
Ryder, ML, "A Survey of European Primitive Breeds of Sheep," Annales de Génétique et de Sélection Animale. 13, no. 4: 381−418, 1981
Ryder, ML, ‘The History of Sheep Breeds in Britain’, The Agricultural History Review, 1964 <http://www.jstor.org/stable/10.2307/40273081>
Ryder, ML, ‘The Human Development of Different Fleece-Types in Sheep and Its Association with the Development of Textile Crafts’, Northern archaeological textiles: NESAT VII: textile symposium in Edinburgh, 5th-7th May 1999, 1999, 122–128
‘Sarcòfag Bucòlic, Museo Nazionale Romano Nelle Terme Di Diocleziano, Roma’ <http://www.flickr.com/photos/sebastiagiralt/4326785572/>
‘Scientists Shine Spotlight on Herdwick Sheep Origins -- ScienceDaily’ <http://www.sciencedaily.com/releases/2014/01/140129184656.htm>
‘Sheep, Plutei of Trajan, Basilica Aemilia, Roman Forum. (Photo ID 17763-Rome)’ http://www.eveandersson.com/photo-display/large/italy/rome-roman-forum-palatine-hill-area-aemilia-basilica-plutei-of-trajan-sheep.html
Skansen Open-air Museum. http://www.skansen.se/sv/artikel/asenfar
Stephenson, M. J., ‘Wool Yields in the Medieval Economy’, Economic History Review, 41 (1988), 368–391 <http://www.jstor.org/stable/2597366>
Sveinbjarnardottir-dignum, By Stefania, ‘THE FASCINATING COLOUR AND PATTERN GENETICS OF THE ICELANDIC SHEEP .’, 1994, 10–15
Thomas, D. L., ‘Performance and Utilization of Northern European Short-Tailed Breeds of Sheep and Their Crosses in North America: A Review’, animal, 2010, 1283–1296
Vedeler, Marianne, and Lise Bender Jørgensen, ‘Out of the Norwegian Glaciers : Lendbreen — a Tunic from the Early First Millennium AD’, 87 (2013), 788–801
Visit Cumbria. http://www.visitcumbria.com/herdwick-sheep/
Walton Rogers, Penelope, ‘Textiles, Cordage and Raw Fibre from 16-22 Coppergate’, 1989
Wigh, Bengt, Excavations in the Black Earth 1990-95 : Animal Husbandry in the Viking Age Town of Birka and Its Hinterland, 2001
Wrightson, John. Sheep: Breeds and Management. Vinton Publishing, 1898.
