Baran , Marzena. 2007. Записки Горного института 170 (2), 197-99. https://pmi.spmi.ru/pmi/article/view/7749.

Baran , Marzena. 2007. "Disasters and Their Influence on the Investors Behaviour on the World Stock Markets". Journal of Mining Institute 170 (2), 197-99. https://pmi.spmi.ru/pmi/article/view/7749.