%0 Journal Article %A O. I. Il'in %T On the optimal exploitation of fish populations with an age structure %J Sibirskij žurnal industrialʹnoj matematiki %D 2007 %P 43-57 %V 10 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2007_10_3_a5/ %G ru %F SJIM_2007_10_3_a5