TY JOUR TI METHOD FOR DETERMINING THE DIRECTION OF WATER FLOW MOTION ON AGROLANDSCAPE OF SLOPE LAND KW JO Vestnik of Kazan State Agrarian University AU Vasil'ev, S.A. AU Maksimov, I.I. AU Alekseev, E.P. AU Mihaylov, A.N. PY 2018 IS 12 PB Kazan state agrarian University