International Astronomical Union, Lieske, J. H., & Abalakin, V. K. (1990). Inertial coordinate system on the sky: Proceedings of the 141th Symposium of the International Astronomical Union, held in Leningrad, U. S. S. R, October 17 - 21, 1989. Proceedings of the ... symposium of the International Astronomical Union.
Chicago-Zitierstil (17. Ausg.)International Astronomical Union, Jay H. Lieske, und Viktor Kuzʹmič Abalakin. "Inertial Coordinate System on the Sky: Proceedings of the 141th Symposium of the International Astronomical Union, Held in Leningrad, U. S. S. R, October 17 - 21, 1989." Proceedings of the ... Symposium of the International Astronomical Union 1990.
MLA-Zitierstil (9. Ausg.)International Astronomical Union, et al. "Inertial Coordinate System on the Sky: Proceedings of the 141th Symposium of the International Astronomical Union, Held in Leningrad, U. S. S. R, October 17 - 21, 1989." Proceedings of the ... Symposium of the International Astronomical Union, 1990.