@article{DVMG_2007_7_1_a5,
     author = {O. I. Il'in},
     title = {On the optimal operation of populations of fishes with age structure},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {48--61},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2007_7_1_a5/}
}