Mathewson, DS; Rome, JM (1963). «Observations of Radio Emission from Normal Galaxies». Australian Journal of Physics16 (3): 360. doi:10.1071/PH630360. Bibcode: 1963AuJPh..16..360M.
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Mathewson, DS; Rome, JM (1963). «Observations of Radio Emission from Normal Galaxies». Australian Journal of Physics16 (3): 360. doi:10.1071/PH630360. Bibcode: 1963AuJPh..16..360M.