@ARTICLE{_Contents_2020,
 volume={68},
 number={No. 1},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 howpublished={online},
 year={2020},
 type={Contents},
 title={Contents},
 URL={http://journals.pan.pl/Content/115910/PDF/00_0-0_Spis%20tresci_Bpast.No.68-1_27.02.20_K%20linked.pdf},
}