TY - JOUR AU - S. N. Tronin TI - Commutative associative projective algebras of rank two over a perfect field JO - Matematičeskie zametki PY - 1987 SP - 776 EP - 780 VL - 41 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1987_41_6_a1/ LA - ru ID - MZM_1987_41_6_a1 ER -