Lipanov Aleksey Matveevich, Rusyak Ivan Grigor'evich, Korolev Stanislav Anatol'evich «On the issue of accuracy of the solution of the direct problem of external ballistics» // Tomsk State University Journal of Mathematics and Mechanics 2017. №47 C.63-74
Voytik Vitaliy V. «Trajectory equations for a non-conservative natural system» // Tomsk State University Journal of Mathematics and Mechanics 2025. №95 C.72-80
