Salo, Esko, Malahat Ghoreishi, Jyrki Raitila, Mikko Jalas, Annu Markkula, and Annukka Näyhä. “Emerging Business Models of Nordic Biochar Producers: A Sustainable Business Model Typology”. Journal of Circular Economy 4, no. 1 (June 9, 2026). Accessed June 9, 2026. https://circulareconomyjournal.org/ojs/JoCE/article/view/335.