@article{TMF_1994_101_1_a8,
     author = {G. I. Kalmykov},
     title = {Expansion of the correlation functions of the grand canonical ensemble in powers of the activity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {94--109},
     publisher = {mathdoc},
     volume = {101},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1994_101_1_a8/}
}