KRAMPUŽA, Ilga. THE DEVELOPMENT PROBLEMS OF BIOLOGICAL BEEKEEPING. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 139–144, 2021. DOI: 10.17770/etr2021vol1.6532. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/6532.. Acesso em: 5 may. 2024.