GULBIS, V. Generation of Woodgas and its Rational Use for Combined Power and Heat Production at Rural Enterprises. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 96–101, 2006. DOI: 10.17770/etr2003vol1.1990. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/1990.. Acesso em: 19 may. 2024.