%0 Journal Article %A M. M. Gvozdikov %A I. I. Fal'ko %T Energy spectrum of superconductors with defects having spherical and cylindrical symmetry of their interaction potential with conduction electrons %J Teoretičeskaâ i matematičeskaâ fizika %D 1975 %P 269-277 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1975_22_2_a12/ %G ru %F TMF_1975_22_2_a12