@article{BUMI_1959_3_14_4_a4,
     author = {Bandi\'c, Ivan},
     title = {Sur une \'equation diff\'erentielle non-lin\'eaire du deuxi\`eme ordre.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {493--497},
     publisher = {mathdoc},
     volume = {Ser. 3, 14},
     number = {4},
     year = {1959},
     zbl = {0090.05703},
     mrnumber = {131008},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1959_3_14_4_a4/}
}