ISTOMINA, N. B.; LIKHACHEVA, O. V. Lichens as Indicators of the Urban Environment Quality. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 3, p. 20–21, 2015. DOI: 10.17770/etr2013vol3.872. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/872.. Acesso em: 28 apr. 2024.