@article{VMUMM_2013_2_a2,
     author = {A. V. Tkachenko},
     title = {One-channel system with unreliable server and different service times},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {12--17},
     year = {2013},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2013_2_a2/}
}