%0 Journal Article %A V. M. Pecevich %T Hamiltonian systems with univalent solutions %J Differencialʹnye uravneniâ %D 1998 %P 1435-1436 %V 34 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_10_a21/ %G ru %F DE_1998_34_10_a21