1.

Book
Book
1. Proceedings of the Thirteenth General Assembly, Prague, 1967
edited by L.Perek
Published: Holland : D.Reidel Pub., 1968
Series: Transactions of the International Astronomical Union ; v. 13b
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2.

Book
Book
2. Paris Symposium on Radio Astronomy : IAU symposium no. 9 and URSI symposium no. 1 held from 30 July to 6 August 1958
edited by Ronald N. Bracewell
Published: Stanford, Calif. : Stanford University Press, 1959
Series: Symposium / International Astronomical Union ; no. 9
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3.

Book
Book
3. New problems in astrometry : symposium no. 61 held in Perth, Western Australia, 13-17 August, 1973 (pbk)
edited by Wilhelm Gliese, C. Andrew Murray, R.H. Tucker
Published: Dordrecht ; Boston : Reidel, 1974
Series: Symposium / International Astronomical Union ; no. 61
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4.

Book
Book
4. Time and the Earth's rotation : proceedings of the 82nd symposium of the International Astronomical Union held in San Fernando, Spain, 8-12 May 1978 (hbk. ; pbk.)
edited by Dennis D. McCarthy and John D.H. Pilkington
Published: Dordrecht, Holland ; Boston : D. Reidel Pub. Co., c1979
Series: Symposium / International Astronomical Union ; no. 82.
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5.

Book
Book
5. Structure and development of solar active regions : symposium no. 35 held in Budapest, Hungary, 4-8 September 1967
edited by K.O. Kiepenheuer
Published: Dordrecht : D. Reidel, 1968
Series: Symposium / International Astronomical Union ; no. 35
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6.

Journal
Journal
6. Astronomy and astrophysics : a European journal
European Southern Observatory
Published: Berlin : Springer-Verlag, c1969-
Volume(Year): Vol. 1, no. 1 (Jan. 1969)-
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