%0 Journal Article %A R. G. Petrosyan %A М. А. Davtyan %T Invariant solution of the Dirac equation in the crossed electric and magnetic fields $(H > E)$ %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2019 %P 138-141 %V 53 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2019_53_2_a8/ %G en %F UZERU_2019_53_2_a8