Spriņģe, Zaiga, and Ināra Laizāne. 2019. “CALCULATION AND MODELING OF EMISSIONS FOR SOLID AND LIQUID FUELS”. HUMAN. ENVIRONMENT. TECHNOLOGY. Proceedings of the Students International Scientific and Practical Conference, no. 23 (April): 140-48. https://doi.org/10.17770/het2019.23.4406.