Lapatin Ivan L., Nazarov Anatoly A. «Characteristics of the Markovianqueueing systems with asymptotical Poisson arrival processes.» // 2011. №3(16) C.24-30
Nazarov A.A., Lapatin I.L. «The research of the output process of an GI GI » // 2009. №4 (9) C.60-66