Aller, L. H., & Keyes, C. D. (1980). International Ultraviolet Explorer satellite observations of seven high-excitation planetary nebulae.
Stile di citazione ChicagoAller, L. H., e C. D. Keyes. International Ultraviolet Explorer Satellite Observations of Seven High-excitation Planetary Nebulae. 1980.
Citazione MLAAller, L. H., e C. D. Keyes. International Ultraviolet Explorer Satellite Observations of Seven High-excitation Planetary Nebulae. 1980.
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