@article{CLTM_1973_1973_1_a12,
     author = {Pessa, Eliano},
     title = {The {De} {Sitter} {Universe} and general relativity.},
     journal = {Collectanea mathematica},
     pages = {151-174},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1973_1973_1_a12/}
}