%0 Journal Article %A Berkovich, L. M. %A Rozov, N. H. %T Transformations of linear differential equations of second order and adjoined nonlinear equations %J Archivum mathematicum %D 1997 %P 75-98 %V 33 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1997__33_1-2_a9/ %G en %F ARM_1997__33_1-2_a9