@article{DAN_1963_150_5_a16,
     author = {E. R. Velibekov},
     title = {A generalized self-consistent field method and collective excitations in the superconductivity theory},
     journal = {Doklady Akademii Nauk},
     pages = {1015--1018},
     publisher = {mathdoc},
     volume = {150},
     number = {5},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_5_a16/}
}