NOVIKS, Gotfrids. SYSTEM ANALYSIS OF REGION ENVIRONMENTAL DIMENSION. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 202–210, 2017. DOI: 10.17770/etr2017vol1.2654. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/2654.. Acesso em: 4 may. 2024.