Élesztős, Pavel, Ladislav Écsi, Roland Jančo, and Jana Gabková. (2020). “Thermal Field of a Solid Particle for Bi > 0 and Fluid Medium of a Countercurrent Heat Exchanger”. Periodica Polytechnica Mechanical Engineering 64 (1), 15-19. https://doi.org/10.3311/PPme.13473.