@ARTICLE{Ostalczyk_P._On_2015, author={Ostalczyk, P.}, volume={63}, number={No 2}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={423-433}, howpublished={online}, year={2015}, title={On simplified forms of the fractional-order backward difference and related fractional-order linear discrete-time system description}, URL={http://journals.pan.pl/Content/84210/PDF/11_paper.pdf}, doi={10.1515/bpasts-2015-0048}, }