Csiminga , D. C. (2006). Записки Горного института, 167(2), 309-312. извлечено от https://pmi.spmi.ru/pmi/article/view/8034

Csiminga , D. C. (2006). The strategy of national pit coal company – consequence of restructuring Romanian mining industry in the context of Romanian adhesion to the European union. Journal of Mining Institute, 167(2), 309-312. Retrieved from https://pmi.spmi.ru/pmi/article/view/8034