Andreev, V.I., A positive ecologic effect due to volcanic eruptions and some of their natural and manmade analogues (collapse events), in Materialy regional’noi konferentsii, posvyashchennoi Dnyu vulkanologa. Vulkanizm i svyazannye s nim protsessy (Proc. of a regional conference devoted to Volcanologist’s Day. Volcanism and Related Processes), Petropavlovsk-Kamchatskii: IViS DVO RAN., 2015, pp. 9–12.
Ashinov, M.I., Devices Used to Enhance the Quality of Planting Stock of Drupaceous Fruits Using Organic Mineral Substrata, Extended Abstract of Cand. Sci. (Agric.) Dissertation, Krasnodar, 2013, 180 p.
Felitsyn, N.B., Vaganov, P.A., and Kir’yanov, V.Yu., Trace element distribution in Kamchatkan ashes from instrumental neutron activation analysis, Volcanology and Seismology., 1991, vol. 12, no. 2, pp. 195–213.
Joergensen, R.G. and Castillo, X., Interrelationships between microbial and soil properties in young volcanic ash soils of Nicaragua, Soil Biology and Biochemistry., 2001, no. 33, pp. 1581–1589.
Karandashev, V.K., Turanov, A.N., Orlova, T.A., et al., The use of inductively coupled plasma mass spectrometry for element analysis of environmental objects, Zavodskaya Laboratoriya. Diagnostika Materialov., 2007, vol. 73, no. 1, pp. 12–22.
Louder, R., Volcanic ash may be helping vegetation growth, The Reykjavik Grapevine., 2010, p. 24.
Okrugin, V.M., A volcanic fantasy—The third month, Gornyi Vestnik Kamchatki., 2013, issue 1(23), pp. 79–92.
Ponomareva, V.V., Major Explosive Volcanic Eruptions and the Use of Their Tephra for Dating and Correlation of Relief Forms and Deposits, Extended Abstract of Doctoral (Geogr.) Dissertation, Moscow: Institute of Geography RAN., 2010, p. 50.
Ponomareva, V.V., Portnyagin, M.V., and Mel’nikov, D.V., The composition of tephra from recent eruptions of volcanoes in Kamchatka and at the Kuril Islands, Vestnik KRAUNTs, Nauki o Zemle., 2012, no. 2, pp. 23–38.
Saidova, Kh.M. and Safarova, S.A., Ecostratigraphy and paleogeography in the Holocene shelf deposits, Bering Sea based on foraminifera, spores, and pollen data, in Chetvertichnyi period. Stratigrafiya (The Quaternary Period. Stratigraphy), Moscow: Nauka., 1989, pp. 176–181.
Samoilenko, S.B., Mel’nikov, D.V., Magus’kin, M.A., and Ovsyannikov, A.A., The beginning of a new Tolbachik fissure eruption in 2012, Vestnik KRAUNTs, Nauki o Zemle., 2012, no. 2, issue 20, pp. 20–22.
Seward, W. and Edwards, B., Testing hypotheses for the use of Icelandic volcanic ashes as low cost, natural fertilizers, Geophys. Res. Abstr., 2012, p. 178.
Shoji, S., Nanzyo, M., and Dahlgren, RA., Volcanic Ash Soils. Genesis, Properties and Utilization, Amsterdam: Elsevier, 1993.
Zakharikhina, L.V. and Litvinenko, Yu.S., Geneticheskie i geokhimicheskie osobennosti pochv Kamchatki (Genetic and Geochemical Features of Kamchatka Soils), Moscow: Nauka., 2011.