ANDRZEJ BUDA, ANDRZEJ JARYNOWSKI, KATARZYNA KUŹMICZ. An attempt to unified approach to the evolution of products in the entertainment industry. EMET [Internet]. 2020 May 28 [cited 2024 Apr. 20];6(6):80-93. Available from: https://e-methodology.eu/index.php/e-methodology/article/view/1196