@article{CLTM_1969_1969_1_a11,
     author = {Arcidiacono, Giuseppe},
     title = {L'Universo di {De} {Sitter} e la meccanica.},
     journal = {Collectanea mathematica},
     pages = {231-255},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {1969},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1969_1969_1_a11/}
}