Hydrological surveys of the Lake Peschanoe and the Sernovodsky isthmus of Kunashir island (Greater Kuril сhain)Mikhail Y. Grishchenko, Vasiliy I. Krylenko, Viktoria T. Ozhgikhina and Artyom V. GorbarenkoE3S Web Conf., 265 (2021) 02007DOI: https://doi.org/10.1051/e3sconf/202126502007