Showing 1 - 3 results of 3 for search 'Steward Observatory, The University of Arizona (Tucson, Arizona)', query time: 2.87s Refine Results
  1. 1
    The Ionization of Planetary Nebulae : Proceedings of the 34th IAU Symposium
    by Williams, R. E.
    Published 1967
    “...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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  2. 2
    The Bowen Fluorescence Mechanism in Planetary Nebulae and Seyfert Galaxy Nuclei
    by Weymann, R. J., Williams, R. E.
    Published 1969
    “...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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    Get full text
  3. 3
    The Ionization and Thermal Equilibrium of a Gas Excited by Ultraviolet Synchrotron Radiation
    by Williams, R. E.
    Published 1966
    “...Steward Observatory, The University of Arizona (Tucson, Arizona)...”
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    Get full text
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