Запорожець, О.І., В.І. Савченко, Г.П. Карабцов, and С.В. Карпенко. “Technologies and Equipment for Reduction of Mud and Tar Concentrations in Biogas”. Proceedings of National Aviation University (archive) 26, no. 4 (April 1, 2005): 144–147. Accessed February 25, 2026. https://jrnl.nau.edu.ua/index.php/visnik/article/view/1232.