ON SHARP BOUNDS ON THE RATE OF CONVERGENCE FOR FINITE CONTINUOUS-TIME MARKOVIAN QUEUEING MODELS ArticleZeifman A., Sipin A., Shilova G., Kiseleva K., Korotysheva A., Satin Y., Korolev V.Lecture Notes in Computer Science (см. в книгах). Том 10672 LNCS. 2018. С. 20-28