%0 Journal Article %A A. V. Pukhlikov %T Optimal bilinear systems on a plane %J Differencialʹnye uravneniâ %D 1998 %P 1516-1520 %V 34 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_11_a10/ %G ru %F DE_1998_34_11_a10