Schletterer, Martin, Leopold Füreder, Vyacheslav Viktorovich Kuzovlev, Kyrill Yuryevich Zhenikov, e Yuri Nikolayevich Zhenikov. 2016. “REFCOND-VOLGA: A Monitoring Programme for Water Quality in the Headwaters of the Volga River (Tver Region, Russia)”. Revista Eletrônica De Gestão E Tecnologias Ambientais 4 (1):18-40. https://doi.org/10.9771/gesta.v4i1.16288.