Kawka , Dorota, Rafał Wyczółkowski, и Lech Szecówka. 2007. Calculations of the Radiation Heat Conduction Coefficient in the Bed of Rods. Записки Горного института 170 (2), 156-59. https://pmi.spmi.ru/pmi/article/view/7740.

Kawka , Dorota, Rafał Wyczółkowski, and Lech Szecówka. 2007. “Calculations of the Radiation Heat Conduction Coefficient in the Bed of Rods”. Journal of Mining Institute 170 (2), 156-59. https://pmi.spmi.ru/pmi/article/view/7740.