Rakhmangulov, Aleksandr N., Natalya N. Orekhova, and Nikita A. Osintsev. 2018. “The Concept of Developing Competences System in the Field of Suistanble Development”. Journal of the Belarusian State University. Ecology, no. 3 (March): 11-19. https://journals.bsu.by/index.php/ecology/article/view/2592.