TY - JOUR AU - M. Kh. Gizatullin TI - Defining relations for the Cremona group of the plane JO - Izvestiya. Mathematics PY - 1983 SP - 211 EP - 268 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1983_21_2_a1/ LA - en ID - IM2_1983_21_2_a1 ER -