@misc{Levi-Civita_Tullio_(1873–1941)_NOTA_1957,
 author={Levi-Civita, Tullio (1873–1941) and Nicola Zanichelli Editore. and Accademia nazionale dei Lincei.},
 address={Bologna},
 howpublished={online},
 year={1957},
 publisher={Nicola Zanichelli Editore},
 language={ita},
 type={Text},
 title={NOTA II. Ibidem, pp. 381-391},
 URL={http://www.rcin.org.pl/Content/163147/PDF/WA35_193602_11273-3_Art15.pdf},
}