Бабак, В.П., В.П. Харченко, and Є.А. Знаковська. 2004. “Research of Collision Probability Behaviour the Appreciated Behind a Method of the Rare Events Modelling at Optimum Sample”. Proceedings of National Aviation University (archive) 22 (4):3-7. https://doi.org/10.18372/2306-1472.22.1049.