TY - JOUR AU - I. G. Solovyev TI - The method of comparison systems, based on input-output models, in JO - Doklady Akademii Nauk PY - 1989 SP - 291 EP - 293 VL - 305 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_305_2_a8/ LA - ru ID - DAN_1989_305_2_a8 ER -