Turchyn, I. M., G. V. Vasylko, and O. Ya. Ivaskevych. 2019. “The Mixed Unsteady Heat Conduction Problem for a Half-Infinite Hollow Cylinder”. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, no. 1 (February): 222-25. https://doi.org/10.17721/1812-5409.2019/1.52.