Potrč, S., Bogataj, M., Kravanja, Z., & Novak Pintarič, Z. (Eds.). (2022). 4th International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings (Vols. 2021). Univerzitetna založba Univerze v Mariboru. https://doi.org/10.18690/um.fkkt.3.2022