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Literature 1969, Part 2 [1970]
- 4
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Applied Mathematics, Physics
- 5
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Instruments and Astronomical Techniques
- 9
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Sun
- 11
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Planetary System
- 12
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Stars
- 14
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Radio Sources, Quasars, Pulsars, X Ray-, Gamma Ray-Sources, Cosmic Radiation
- 15
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Stellar Systems
- 1
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Introduction
- 3
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Abbreviations
- 5
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Periodicals, Proceedings, Books, Activities
- 87
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Positional Astronomy. Celestial Mechanics
- 105
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Space Research
- 117
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Theoretical Astrophysics
- 192
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Earth
- 343
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Interstellar Matter, Gaseous Nebulae, Planetary Nebulae