GRAVITY–OPERATED IMPACT FEEDER DYNAMICS. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 2, p. 214–221, 2015. DOI: 10.17770/etr2009vol2.1042. Disponível em: https://archive-journals.rtu.lv/etr/article/view/3698.. Acesso em: 11 mar. 2026.