TY - JOUR AU - K. V. Zainullin TI - On Grothendieck's conjecture on principal homogeneous spaces for some classical algebraic groups JO - Algebra i analiz PY - 2000 SP - 150 EP - 184 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_2000_12_1_a4/ LA - ru ID - AA_2000_12_1_a4 ER -