@ARTICLE{Wanke_Piotr_In-use_2012,
 author={Wanke, Piotr},
 number={No 2},
 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={In-use investigations of the changes of lubricant properties in diesel engines},
}