@article{TMF_1991_86_2_a14,
     author = {M. E. Zhuravlev and V. A. Ivanov},
     title = {Superconductivity in a~system of electrons with 4-fermion tunneling {Hamiltonian}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {312--317},
     publisher = {mathdoc},
     volume = {86},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_86_2_a14/}
}