@article{DAN_1962_146_6_a17, author = {V. V. Tolmachev}, title = {The criterion for superconductivity as a criterion for the appearance of an instability of the}, journal = {Doklady Akademii Nauk}, pages = {1312--1315}, year = {1962}, volume = {146}, number = {6}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_6_a17/} }