TY - JOUR AU - V. A. Iskovskikh TI - A counterexample to the Hasse principle for a system of two quadratic forms in five variables JO - Matematičeskie zametki PY - 1971 SP - 253 EP - 257 VL - 10 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1971_10_3_a1/ LA - ru ID - MZM_1971_10_3_a1 ER -