TY JOUR TI MODELLING OF THE FORM OF THE CAM ENSURING OPTIMUM FUNCTIONING OF THE SOWING DEVICE OF VIBRATION TYPE KW granulated environment KW spline in-terpolation KW numerical modeling JO Bulletin of KSAU AU Bogulsky, I.O. AU Bogulskaya, N.A. PY 2017 IS PB Krasnoyarsk State Agrarian University