%0 Journal Article %A V. Yu. Lazur %A O. F. Pavlik %A A. K. Reity %T The~relativistic operator of interaction of two quasimolecular electrons as a~third-order effect of quantum electrodynamics %J Teoretičeskaâ i matematičeskaâ fizika %D 2010 %P 70-96 %V 165 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2010_165_1_a4/ %G ru %F TMF_2010_165_1_a4