The secular variations of the orbital elements of the principal planets
By: [by Dirk Brouwer and A.J.J. Van Woerkom]
Contributors: Woerkom, Adrianus Jan Jasper van, joint author.
Series: Astronomical papers prepared for the use of the American ephemeris and nautical almanac ;; v. 13, pt.2
Publisher: U.S. Govt. Print. Off.
Published: 1950
Place of publication: Washington
Language: eng
Number of pages: 107
Subjects: Orbits.; Planets.