1. Atlas pochv Respubliki Komi (Atlas of Soils in Komi Republic), Dobrovol’skii, G.V., Taskaev, A.I., and Zaboeva, I.V., Eds., Syktyvkar, 2010.
2. Barenboim, G.M., Ertsev, G.N., Taskaev, A.I., Ulyashev, A.I., and Shubin, Yu.P., Environmental monitoring in the zone of an accident, Opyt likvidatsii avariinykh razlivov nefti v Usinskom raione Respubliki Komi (Materialy realizatsii proekta) (Experience in Oil Spill Response in the Usinskii Raion, Komi Republic Project Implementation Materials)), Bibikov, V.S., Ed., Syktyvkar: Komimeliovodkhozproekt, 2000, pp. 83–146.
3. Studying oil pollution of the Ural tributaries of the Lower Ob;I.I. Brusynina,1992
4. Bryzgalo, V.A., Reshetnyak, O.S., Kosmenko, L.S., and Kondakova, M.Yu., Variations in the environmental conditions and pollutant transport along the Pechora River, Vestn. Severn. (Arktich.) Federal. Univ., Ser. Estestv. Nauki, 2015, no. 4, pp. 5–14.
5. Vinogradov, G.A., Berezina, N.A., Lapteva, N.A., and Zharikov, G.P., Use of structural characteristics of bacterio- and zoobenthos for assessing the quality of bottom deposits: case study of water bodies in the Upper Volga Basin, Water Resour., 2002, vol. 29, no. 3, pp. 299–305.