Inertial coordinate system on the sky : proceedings of the 141st Symposium of the International Astronomical Union, held in Leningrad, U.S.S.R., October 17-21, 1989 - International Astronomical Union. Symposium 1989 : Leningrad, R.S.F.S.R.); Lieske, Jay H.; Abalakin, Viktor Kuzʹmich (Netherlands : Kluwer Academic Publishers, 1990)
At head of title: International Astronomical Union=Union astronomique internationale.
Includes bibliographical references and index.
Keywords: Celestial reference systems -- Congresses