@misc{Volterra_Vito_(1860–1940)_Delle_1889, author={Volterra, Vito (1860–1940)}, volume={Vol. 1, 1881-1892}, copyright={Public Domain}, address={Roma}, journal={Opere matematiche : memorie e note / Vito Volterra}, howpublished={online}, year={1889}, publisher={Accademia Nazionale dei Lincei}, language={ita}, title={Delle variabili complesse negli iperspazi. Nota II}, type={Text}, URL={http://rcin.org.pl/Content/152742/PDF/WA35_185760_11086-1_23b.pdf}, }