@ARTICLE{Siwczyński_M._The_2013,
 author={Siwczyński, M. and Drwal, A. and Żaba, S.},
 volume={61},
 number={No 2},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={371-377},
 howpublished={online},
 year={2013},
 title={The digital function filters – algorithms and applications},
 URL={http://www.journals.pan.pl/Content/83703/PDF/10_paper.pdf},
 doi={10.2478/bpasts-2013-0036},
}