%0 Journal Article %A V. S. Polikanov %T Method of calculating matrix elements and cross sections with wave functions with definite angular momentum %J Teoretičeskaâ i matematičeskaâ fizika %D 1976 %P 42-47 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1976_26_1_a3/ %G ru %F TMF_1976_26_1_a3