Lutyński , Marcin A., and Piotr Sakiewicz. 2007. Записки Горного института 170 (2), 234. https://pmi.spmi.ru/index.php/pmi/article/view/7760.
Lutyński , Marcin A., and Piotr Sakiewicz. 2007. “Feasibility Study of CO2 Storage in Closed Coal Mines”. Journal of Mining Institute 170 (2), 234. https://pmi.spmi.ru/index.php/pmi/article/view/7760.