Baran , M. (2007). Записки Горного института, 170(2), 197-199. извлечено от https://pmi.spmi.ru/pmi/article/view/7749

Baran , M. (2007). Disasters and their influence on the investors behaviour on the world stock markets. Journal of Mining Institute, 170(2), 197-199. Retrieved from https://pmi.spmi.ru/pmi/article/view/7749