Campana, Michael G., Bower, Mim A., Bailey, Melanie J., Stock, Frauke, O'Connell, Tamsin C., Edwards, Ceiridwen J., Checkley-Scott, Caroline, Knight, Barry, Spencer, Matthew, and Howe, Christopher J. 2010. "A flock of sheep, goats and cattle: ancient DNA analysis reveals complexities of historical parchment manufacture." Journal of Archaeological Science, 37, (6) 1317–1325.