TY - JOUR AU - I. V. Zefirov TI - Commuting algebraic correspondences and groups JO - Matematičeskie zametki PY - 1997 SP - 662 EP - 670 VL - 61 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1997_61_5_a2/ LA - ru ID - MZM_1997_61_5_a2 ER -