@ARTICLE{Klamka_J._Banach_2016,
 author={Klamka, J. and Babiarz, A. and Niezabitowski, M.},
 volume={64},
 number={No 1},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={21-35},
 howpublished={online},
 year={2016},
 title={Banach fixed-point theorem in semilinear controllability problems – a survey},
 URL={http://journals.pan.pl/Content/84398/PDF/04_paper.pdf},
 doi={10.1515/bpasts-2016-0004},
}