Valgma, I., Väizene, V., Kolats, M., Karu, V., Pastarus, J. R., Rahe, T., & Iskül, R. (2015). Reduction of Oil Shale Losses.
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference,
1, 201-205.
https://doi.org/10.17770/etr2013vol1.835