%0 Journal Article %A E. F. Popov %T On the conservation of some tensor quantities during the interaction of charged particles %J Doklady Akademii Nauk %D 1990 %P 321-325 %V 313 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_313_2_a14/ %G ru %F DAN_1990_313_2_a14