Lunar occultations of the galactic center region in HI, OH and CH²O lines.
College Park : Astronomy Program, University of Maryland, 1971.
130 págs. (anilladas).
Tesis (doctorado) —University of Maryland, 1971.
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College Park : Astronomy Program, University of Maryland, 1971.
130 págs. (anilladas).
Tesis (doctorado) —University of Maryland, 1971.