SKROMULIS, Andris; BREIDAKS, Juris. Effect of Environmental Factors on Air Ion Concentration. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 2, p. 274–279, 2015. DOI: 10.17770/etr2015vol2.241. Disponível em: https://journals23.rta.lv/index.php/ETR/article/view/241.. Acesso em: 22 dec. 2024.