1. Galda Z., Kubenková K., Oravec P. // Записки Горного института. 2007. Том 170№ 2. C. 203-206.

1. Galda Z., Kubenková K., Oravec P. Interaction of power engineering and living environment in the Czech Republic // Journal of Mining Institute. 2007. Том 170№ 2. C. 203-206.