title: [Importance of hygienic research in solving the problems of protecting reservoirs at the present-day stage].
mesh_terms: D006920:Hygiene; D012106:Research; D014586:USSR; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply / Q000592:standards
vernacular_title: Znachenie gigienicheskikh issledovaniĭ v reshenii problem okhrany vodoemov na sovremennom étape