%0 Journal Article %A I. V. Volovich %T Quasicalssical expansion in quantum field theory and solitons %J Teoretičeskaâ i matematičeskaâ fizika %D 1976 %P 18-24 %V 29 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_1976_29_1_a1/ %G ru %F TMF_1976_29_1_a1