Mirnenko, Volodymyr, Peter Yablonsky, Yurii Koskov, and Sergei Litvinko. 2017. “The Mathematical Model of Medical Servicing of Servicemen With the Use Semi-Markov Stochastic Process Theory”. Social Development and Security 2 (2), 12 - 24. https://doi.org/10.5281/zenodo.1117937.