Masthead.Published in:Astronomische Nachrichten, 1829, v. 7, n. 28, p. fmi, doi. 10.1002/asna.18290072801Publication type:Article
Disquisitiones circa theoriam perturbationum quae motum corporum coelestium afficiunt, auctore.Published in:Astronomische Nachrichten, 1829, v. 7, n. 28, p. 417, doi. 10.1002/asna.18290072802By:Hansen, P. A.Publication type:Article