@article{TVP_1977_22_4_a14,
     author = {A. A. Mogul'skiǐ and E. A. Pe\v{c}erskiǐ},
     title = {On the first exit time out of a~semigroup in $R^m$ for a~random walk},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {837--844},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1977_22_4_a14/}
}