%0 Journal Article %A Yu. V. Popov %A K. A. Kouzakov %T Gage-equivalent forms of the Schr\"odinger equation for a~hydrogenlike atom in a~nonstationary electric field %J Fundamentalʹnaâ i prikladnaâ matematika %D 2007 %P 189-197 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2007_13_1_a10/ %G ru %F FPM_2007_13_1_a10