%0 Journal Article %A O. I. Mokhov %T Commuting differential operators of rank~3, and nonlinear differential equations %J Izvestiya. Mathematics %D 1990 %P 629-655 %V 35 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1990_35_3_a5/ %G en %F IM2_1990_35_3_a5