@misc{Levi-Civita_Tullio_(1873–1941)_Complementi_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},
 title={Complementi al teorema di Malus-Dupin: Nota I. « Rend. Acc. Lincei », s. 5, vol. IX (1˚ sem. 1900), pp.185-189},
 type={Text},
 URL={http://www.rcin.org.pl/Content/153675/PDF/WA35_186572_11273-1_Art31.pdf},
}