%0 Journal Article %A M. E. Palistrant %T Influence of the phonon spectrum on the critical temperature of a superconductor at a type $2\frac12$ phase transition %J Teoretičeskaâ i matematičeskaâ fizika %D 1977 %P 390-399 %V 33 %N 3 %U http://geodesic.mathdoc.fr/item/TMF_1977_33_3_a8/ %G ru %F TMF_1977_33_3_a8