00578naa#a2200205#i#450# EN\INFRA-M\bibl\254 20240701002432.1 1998-071X 20130625b2013####ek#y0engy0150####ca RUS RU Mathematical Forecasting Model of Water Sources’ Ecological Safety Journal article Moscow INFRA-M Academic Publishing LLC. 2013 4 с. Journal article local Smetannikov Yu. Koptev N. Zaytsev V. Lukashev E. zh-szf.ru