@article{SM_1969_9_1_a0,
     author = {A. M. Khalfina},
     title = {The limiting equivalence of the canonical and grand canonical ensembles (low density case)},
     journal = {Sbornik. Mathematics},
     pages = {1--52},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1969_9_1_a0/}
}