TY JOUR TI The results of the technical condition assessment water supply network of canals and structures the Republic of Kalmykia KW hydraulic calculations KW canal KW reconstruction KW irrigation system KW surveys KW filtration KW water resistance JO Melioration and Water Management AU Talalaeva, V.F. AU Baev, O.A. AU Kolganov, A.V. PY 2026 IS 2025 PB ANO Editorial Board Melioration and water management