1. Arnold, V.I., On functions of three variables, Dokl. Akad. Nauk SSSR, 1957, vol. 114, no. 4, pp. 679–681.
2. Borovikov, V.P., Neironnye seti Statistica Neural Networks: Metodologiya i tekhnologiya sovremennogo analiza dannykh (Neural Networks Statistica Neural Networks: Methodology and Technology of Modern Analysis of Data), Moscow: StatSoft, 2015.
3. GOST (State Standard) 27 384-2002: Water. Standards for Measurement of Characteristics of Composition and Properties.
4. GOST (State Standard) R ISO 14 046-2017: Ecological Management. Water Footprint. Principles, Requirements, and Guidelines.
5. Gosudarstvennyi doklad “O sostoyanii i ispol’zovanii vodnykh resursov Rossiiskoi Federatsii v 2020 godu” (State Report “On the State and Use of Water Resources in the Russian Federation in 2020”), Moscow: Rosvodresursy, NIA-Priroda, 2022.