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Literature 1969, Part 2 [1970]

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