TY JOUR TI INCREASING THE COURSE STABILITY OF A MOBILE TOWER FOR SUPPORT INSTALLATION IN HOP FIELD KW mobile tower KW hop growing KW support installation JO Vestnik of Kazan State Agrarian University AU Vasil'ev, A.O. AU Lukaev, S.L. AU Andreev, R.V. AU Kazakov, Y.F. PY 2025 IS 20 PB Kazan state agrarian University