1. R. F. Abdrakhmanov, “Ecotoxicant geochemistry of groundwater of urban areas,” Geochem. Int. 35 (6), 551–556 (1997).
2. R. F. Abdrakhmanov, Hydroecology of Bashkiria (Informreklama, Ufa, 2005) [in Russian].
3. O. A. Alekin, Principles of Hydrochemistry (Gidrometeoizdat, Leningrad, 1970) [in Russian].
4. L. V. Bakhireva, A. D. Zhigalin, M. V. Karagodina, E. A. Kiseleva, L. S. Kozhevina, V. N. Kolomenskaya, V. F. Kotlov, G. L. Koff, E. L. Likhacheva, G. P. Lokshin, and S. A. Mamontova, Rational Use and Environment Protection of Urban Areas (Nauka, Moscow, 1989) [in Russian].
5. B. DeVivo, H. Belkin, and A. Lima, Environmental Geochemistry: Site Characterization, Data Analysis and Case Histories (Elsevier, Amsterdam, 2008). Dioxines in the Environment. Report on Pollutions (Her Majesty’s Government Publishing, London, 1990), No. 27. Dioxines: Ecological Problems and Methods of Analysis (IGPPEiP, Ufa, 1995) [in Russian].