Zavodna, Lucie Sara, and Lucie Trejtnarova. “Sustainable Packaging in Footwear Industry: Case Study of PUMA”. Economics, Management and Sustainability 6, no. 1 (April 22, 2021): 27–33. Accessed July 7, 2026. https://jems.sciview.net/index.php/jems/article/view/120.