@misc{Levi-Civita_Tullio_(1873–1941)_Sopra_1956,
 author={Levi-Civita, Tullio (1873–1941) and Nicola Zanichelli Editore. and Accademia nazionale dei Lincei.},
 address={Bologna},
 howpublished={online},
 year={1956},
 publisher={Nicola Zanichelli Editore},
 language={ita},
 type={Text},
 title={Sopra l;equazione di KEPLER. « Rend. Acc. Lincei », s. 5ª, vol. XIII ( 1˚ sem. 1904), pp. 260-268},
 URL={http://www.rcin.org.pl/impan/Content/159287/PDF/WA35_189004_11273-2_Art24.pdf},
}