Tokarz, Barbara, Bruno Tokarz, Alexandre Borges Fagundes, Delcio Pereira, and Fernanda Hänsch Beuren. “Product-Service Systems: A Literature Review on Assisting Development”. International Journal of Advanced Engineering Research and Science 7, no. 6 (June 9, 2020). Accessed July 22, 2024. https://journal-repository.com/index.php/ijaers/article/view/2069.