FIELD STUDIES OF RIVER FLOW DYNAMICS IN THE LOWER POOL OF A HYDROSYSTEM Статья Kotlyakov A.V., Gritsuk I.I., Derbenev M.V., Ponomarev N.K., Aretem'ev S.A., Avsyanikov M.N., Lafi I.V. Water Resources. Том 34. 2007. С. 401-407