@article{2004,
author = {Segre, Beniamino},
title = {Alcune questioni algebrico-differenziali},
journal = {Portugaliae mathematica},
volume = {10},
year = {1951},
pages = {29-36},
zbl = {0043.36102},
mrnumber = {0044862},
language = {it},
url = {http://dml.mathdoc.fr/item/2004}
}
Segre, Beniamino. Alcune questioni algebrico-differenziali. Portugaliae mathematica, Tome 10 (1951) pp. 29-36. http://gdmltest.u-ga.fr/item/2004/