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First Extragalactic Detection of NH3
R. N. Martin and P. T. P. Ho,
Detection of Extragalactic Ammonia,
Astron. Astrophys. 74, L7-L9 (1979).
Source(s): NGC253, IC342
Facility: MPIfR 100m
Contributor(s): S. Thorwirth; 09/2005