@misc{_V._1895, editor={Peano, Giuseppe (1858–1932). Ed.}, editor={Peano, Giuseppe (1858–1932)}, copyright={Public Domain}, address={Turin}, howpublished={online}, year={1895}, publisher={Bocca Frères}, publisher={Ch. Clausen}, language={fre}, title={V. Classes de nombres.}, type={Text}, URL={http://rcin.org.pl/Content/88569/PDF/WA35_114847_6452_Classes.pdf}, }