Bekkerman Ekaterina N., Kataeva Sophia S. «Algorithm of estimationfor number of states and state rates of MC-flow.» // 2009. №3 (8) C.19-26
Gortsev Alexander M., Bekkerman Ekaterina A. «Heuristic algorithm for estimating the number of states of asynchronous MC-flow events» // 2014. №3(28) C.20-31