TY - JOUR AU - A. I. Abakumov TI - Populations optimal harvest (time continuous models) JO - Matematičeskoe modelirovanie PY - 1993 SP - 41 EP - 52 VL - 5 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_1993_5_11_a2/ LA - ru ID - MM_1993_5_11_a2 ER -