Allaguvatova Р. З., Nikulin А. Ю., Bagmet В. Б., and Abdullin Ш. Р. “Cyanobacteria and Algae Biodiversity of Grounds and Soils from South Kamchatka Volcanoes”. Vestnik of the Far East Branch of the Russian Academy of Sciences, no. 5, Oct. 2022, pp. 75-87, http://vestnikdvo.ru/index.php/vestnikdvo/article/view/1004.