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© 1975 American Institute of Physics.
1975
American Institute of Physics
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R. Jastrow, M. H. Thompson, P. W. Hodge, S. P. Wyatt, J. B. Kaler, H. Crull, W. Kaufmann, Richard Berendzen; Astronomy: Fundamentals and Frontiers, 2nd edition; Concepts of Contemporary Astronomy; Principles of Astronomy: A Short Version; and The Science of Astronomy. Physics Today 1 January 1975; 28 (1): 95–97. https://doi.org/10.1063/1.3068784
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