Noviks, Gotfrīds. “UPCYCLING OF TECHNOGENIC MINERAL WASTE – CHALLENGES AND SOLUTIONS”.
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 16, 2021): 183–190. Accessed April 11, 2025.
https://journals.rta.lv/index.php/ETR/article/view/6586.