Diófási-Kovács, O. and Valkó, L. (2015) “Furthering sustainable development: The implementation of Green Procurement in Central and Eastern Europe Methods and Experiences from Hungarian Public and Private Organizations”, Problemy Ekorozwoju, 10(2), pp. 115–126. Available at: https://ph.pollub.pl/index.php/preko/article/view/4915 (Accessed: 22 July 2024).