Kluska , D. (2007). Записки Горного института, 170(2), 104-106. извлечено от https://pmi.spmi.ru/pmi/article/view/7725

Kluska , D. (2007). Mining subsidence – polish formal and legal solutions. Journal of Mining Institute, 170(2), 104-106. Retrieved from https://pmi.spmi.ru/pmi/article/view/7725