Submitted by vladimir on Sun, 2015-03-08 12:45 Publication Type: Journal Article Authors: Morel, Fabien; Voevodsky, Vladimir Source: Inst. Hautes Études Sci. Publ. Math., p.45–143 (2001) (1999) URL:http://www.numdam.org/item?id=PMIHES_1999__90__45_0 Files: A1_homotopy_with_Morel_published.pdf