Gogoţ , Gabriela, и Sorin Dobîrcianu. 2006. Записки Горного института 167 (2), 327-30. https://pmi.spmi.ru/pmi/article/view/8039.

Gogoţ , Gabriela, and Sorin Dobîrcianu. 2006. "The Implementation and Optimizing of the Informational Systems in the company’s Management". Journal of Mining Institute 167 (2), 327-30. https://pmi.spmi.ru/pmi/article/view/8039.