@ARTICLE{_Contents_2021,
 volume={vol. 31},
 number={No 4},
 journal={Archives of Control Sciences},
 howpublished={online},
 year={2021},
 publisher={Committee of Automatic Control and Robotics PAS},
 type={Contents},
 title={Contents},
 URL={http://ochroma.man.poznan.pl/Content/121922/PDF-MASTER/Contents_ACS-2021-4_.pdf},
}