1. Afanasenko, O.V., Barmin, A.V., Potapova, M.A., and Zemlyansky, V.N., Studies on ecological safety and impact monitoring of pollution sources on the territory of the Middle Timan Bauxite Mine OSC “Timan Bauxite”, Izv. Komi Nauchn. Tsentra Ural. Otd. Ross. Akad. Nauk, 2010, no. 2, pp. 44–47.
2. Atlas Respubliki Komi (Atlas of the Komi Republic), Moscow: Feoria, 2011.
3. Balabanova, B., Stafilov, T., Šajn, R., and Bačeva, K., Comparison of response of moss, lichens and attic dust to geology and atmospheric pollution from copper mine, Int. J. Environ. Sci. Technol., 2014, no. 11, pp. 517–528. https://doi.org/10.1007/s13762-013-0262-8
4. Bargagli, R. and Barghigiani, C., Lichen biomonitoring of mercury emission and deposition in mining, geothermal and volcanic areas of Italy, Environ. Monit. Assess., 1991, vol. 16, no. 3, pp. 265–275. https://doi.org/10.1007/BF00397614
5. Guidelines for the use of epiphytic lichens as biomonitors of atmospheric deposition of trace elements;R. Bargagli,2002