TY - JOUR AU - N. N. Kalitkin TI - The problem of canceling mutual debts of enterprises JO - Doklady Akademii Nauk PY - 1995 SP - 12 EP - 14 VL - 343 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1995_343_1_a2/ LA - ru ID - DAN_1995_343_1_a2 ER -