@article{TMF_1970_4_1_a8,
     author = {V. D. Ozrin},
     title = {Chain of equations for two-time temperature-dependent {Green's} functions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {66--75},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1970_4_1_a8/}
}