Lindroos, Karin. “Implementation of the Theoretical Concept of Green Procurement and Supplier Selection in Estonian Shipbuilding Industry. Rohelise Hanke Ja Tarnija Valiku Protsessi Teoreetilise Kontseptsiooni Rakendamine Eesti laevaehitustööstuses”. Estonian Discussions on Economic Policy 23, no. 2 (1). Accessed September 30, 2020. http://ojs.utlib.ee/index.php/TPEP/article/view/12495.