@article{TVP_1997_42_2_a1,
     author = {V. M. Kruglov},
     title = {To the invariance principle},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {239--261},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1997_42_2_a1/}
}