@ARTICLE{Nishchenko_I._Mathematical_2014,
 author={Nishchenko, I. and Sukach, O.},
 number={No 4},
 journal={ECONTECHMOD},
 howpublished={online},
 year={2014},
 publisher={Polish Academy of Sciences Branch in Lublin},
 publisher={Lviv Polytechnic National University},
 publisher={Foundry Research Institute in Cracow},
 title={Mathematical model of interaction of milk thistle seedwith grooved working surfaces},
}