%0 Journal Article %A M. Kh. Gizatullin %T Defining relations for the Cremona group of the plane %J Izvestiya. Mathematics %D 1983 %P 211-268 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1983_21_2_a1/ %G en %F IM2_1983_21_2_a1