1.

Book
Book
1. The stability of the solar system and of small stellar systems : symposium no. 62 (Copernicus Symposium I) held at Warsaw, Poland, September 5-8, 1973 (pbk.)
edited by Y. Kozai
Published: Dordrecht ; Boston : D. Reidel, 1974
Series: Symposium / International Astronomical Union ; no. 62
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2.

Book
Book
2. Problems of calibration of absolute magnitudes and temperature of stars : Symposium no.54 held in Geneva, Switzerland, September 12-15, 1972
edited by B. Hauck and B.E. Westerlund
Published: Dordrecht ; Boston : D. Reidel, 1973
Series: Symposium / International Astronomical Union ; no. 54
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3.

Book
Book
3. Spectral classification and multicolour photometry : Symposium no. 50 held in Villa Carlos Paz, Argentina, October 18-24, 1971
edited by Ch. Fehrenbach and B.E. Westerlund.
Published: Dordrecht ; Boston : D. Reidel, 1973
Series: Symposium / International Astronomical Union ; no. 50
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4.

Journal
Journal
4. 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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