Perturbations de 50 petites planètes.Published in:Astronomische Nachrichten, 1927, v. 231, n. 3, p. 41, doi. 10.1002/asna.19272310302By:de la Villemarqué, E.Publication type:Article
Masthead.Published in:Astronomische Nachrichten, 1927, v. 231, n. 3, p. fmi, doi. 10.1002/asna.19272310301Publication type:Article