%0 Journal Article %A A. V. Arguchintsev %T A nonclassical optimality condition in a problem of population control with age distribution %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2003 %P 1659-1665 %V 43 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_2003_43_11_a4/ %G ru %F ZVMMF_2003_43_11_a4