Gogoţ , Gabriela, Mihaela Ciopi Oprea, и Sorin Dobîrcianu. 2006. Записки Горного института 167 (2), 331-34. https://pmi.spmi.ru/pmi/article/view/8040.

Gogoţ , Gabriela, Mihaela Ciopi Oprea, and Sorin Dobîrcianu. 2006. "The Use of Automatic Data processing/Computing Systems at the Modern Management Level of the Company". Journal of Mining Institute 167 (2), 331-34. https://pmi.spmi.ru/pmi/article/view/8040.