@misc{Levi-Civita_Tullio_(1873–1941)_Sui_1954,
 author={Levi-Civita, Tullio (1873–1941) and Nicola Zanichelli Editore. and Accademia nazionale dei Lincei.},
 address={Bologna},
 howpublished={online},
 year={1954},
 publisher={Nicola Zanichelli Editore},
 language={ita},
 type={Text},
 title={Sui numeri transfiniti: Nota I. « Rend. Acc. Lincei », s. 5ª, vol. VII (1˚ sem. 1898), pp. 91-96},
 URL={http://www.rcin.org.pl/Content/153656/PDF/WA35_186402_11273-1_Art22.pdf},
}