1. Barefoot vs. shod;King;The Horse Magazine,2008
2. Is running barefoot better for you?,2009
3. Fort Rock Report: Prehistory and environment of the pluvial Fort Rock lake area of south-central Oregon;Bedwell,1970
4. Anatomical evidence for the antiquity of human footwear;Trinkaus;Journal of Archaeological Science,2008
5. Shoeing: A Necessary Evil?;Strasser,2000