@article{TMF_1970_5_3_a7,
     author = {D. N. Zubarev and V. P. Kalashnikov},
     title = {Perturbation theory and integral equations for nonequilibrium statistical operators},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {406--416},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1970_5_3_a7/}
}