TY - JOUR AU - A. V. Arguchintsev TI - A nonclassical optimality condition in a problem of population control with age distribution JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 2003 SP - 1659 EP - 1665 VL - 43 IS - 11 UR - http://geodesic.mathdoc.fr/item/ZVMMF_2003_43_11_a4/ LA - ru ID - ZVMMF_2003_43_11_a4 ER -