Bogusz , M. (2007). Записки Горного института, 170(2), 184-186. извлечено от https://pmi.spmi.ru/pmi/article/view/7746

Bogusz , M. (2007). Present time and prospect development of individual farms in klodzka dale after join to European Union. Journal of Mining Institute, 170(2), 184-186. Retrieved from https://pmi.spmi.ru/pmi/article/view/7746