401
Pringle, H., 1998. Neolithic agriculture: reading the signs of ancient animal domestication. Science. 282, 1448.
402
Thomas M and others, 2007, Proc. Nat. Acad. Sci.
403
Latham, M.C., 1997. Human nutrition in the developing world, Rome, 1997. FAO Food and Nutrition Series № 29, Cornell University, Ithaca, N Y.
404
Butler, J., 2006. White lies. Vegetarian and Vegan Foundation.
405
AbuGhazaleh, A.A. and others, 2004. CLA increases in milk when cows fed fish meal and extruded soybeans for an extended period of time. Journal of Dairy Science, 87 (6), 1758–1766.