IVANOVS, Semjons; MATISANS, Eduards. ECOLOGICALLY SAFE TECHNOLOGIES OF GRASS FEED PRODUCTION. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 36–41, 2001. DOI: 10.17770/etr2001vol1.1969. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/1969.. Acesso em: 5 may. 2024.