%0 Journal Article %A G. I. Marchuk %T Construction of adjoint operators in non-linear problems of mathematical physics %J Sbornik. Mathematics %D 1998 %P 1505-1516 %V 189 %N 10 %U http://geodesic.mathdoc.fr/item/SM_1998_189_10_a3/ %G en %F SM_1998_189_10_a3