TY - JOUR AU - M. K. Kravtsov TI - Polyhedral aspects of multi-index transportation problems with JO - Doklady Akademii Nauk PY - 1990 SP - 1298 EP - 1302 VL - 315 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1990_315_6_a2/ LA - ru ID - DAN_1990_315_6_a2 ER -