@ARTICLE{Ortigueira_M.D._On_2018, author={Ortigueira, M.D. and Machado, J.T.M.}, volume={66}, number={No 4}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={389-402}, howpublished={online}, year={2018}, type={Artykuły / Articles}, title={On fractional vectorial calculus}, URL={http://journals.pan.pl/Content/108410/PDF/2-00748.pdf}, keywords={Grunwald-Letnikov, Liouville, fractional gradient, fractional divergence, fractional curl, fractional Laplacian, Green’s theorem, Stokes’ theorem, Ostrogradski-Gauss’s theorem}, }