@ARTICLE{Pronin_Maxim_The_2012, author={Pronin, Maxim}, number={No 3}, journal={Teka Commission of Motorization and Power Industry in Agriculture}, howpublished={online}, year={2012}, publisher={The Lublin Branch of the Polish Academy of Sciences}, title={The mathematical model of the traction force coefficient of the conveyor on an air cushion with sloping round channels}, }