TY - JOUR AU - I. V. Gaishun TI - Approximate controllability of two-parameter discrete systems with commuting operators JO - Differencialʹnye uravneniâ PY - 1995 SP - 939 EP - 948 VL - 31 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1995_31_6_a2/ LA - ru ID - DE_1995_31_6_a2 ER -