%0 Journal Article %A A. Yu. Perevaryukha %T Nonlinear model of overfishing for the Volga sturgeon based on cognitive graph of interaction of environmental factors %J Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ %D 2016 %P 92-106 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGU_2016_1-2_a9/ %G ru %F VSGU_2016_1-2_a9