V. N. MARKIN; I. V. GLAZUNOVA. Estimating Ecological Status of Kalaus River in the Stavropolskii Region, Russia. Emerging Challenges in Environment and Earth Science Vol. 4, [S. l.], p. 111–120, 2022. DOI: 10.9734/bpi/ecees/v4/2617B. Disponível em: https://stm.bookpi.org/ECEES-V4/article/view/7583. Acesso em: 11 jun. 2026.