@article{VTPMK_2021_4_a0,
     author = {V. N. Sobolev and A. E. Kondratenko},
     title = {On the stationary distributions in some queueing systems},
     journal = {Vestnik Tverskogo gosudarstvennogo universiteta. Seri\^a Prikladna\^a matematika},
     pages = {5--13},
     year = {2021},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTPMK_2021_4_a0/}
}