@article{CMH_1931__3_138561,
     author = {R. Wavre},
     title = {Essai sur les petites vibrations des astres fluides.},
     journal = {Commentarii mathematici Helvetici},
     pages = {183--208},
     year = {1931},
     volume = {3},
     zbl = {0002.29401},
     url = {http://geodesic.mathdoc.fr/item/CMH_1931__3_138561/}
}