@article{TMF_1972_10_2_a14,
     author = {D. Ya. Petrina and V. P. Yatsishin},
     title = {On~the model {Hamiltonian} of the theory of superconductivity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {283--300},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_10_2_a14/}
}