Blicharski , Jacek. 2006. Gas Mixing in Laboratory Cores. Записки Горного института 167 (2), 58-61. https://pmi.spmi.ru/pmi/article/view/7959.

Blicharski , Jacek. 2006. “Gas Mixing in Laboratory Cores”. Journal of Mining Institute 167 (2), 58-61. https://pmi.spmi.ru/pmi/article/view/7959.