Dlouhá, Jana, Pavel Šremer, and Jiří Dlouhý. “Proces Environment for Europe - 20 Years After the Dobříš Conference”. Envigogika 6, no. 2 (September 30, 2011). Accessed August 7, 2020. https://www.envigogika.cuni.cz/index.php/Envigogika/article/view/344.