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W.B. Burton, Verheijen, M. A. W.; Kraan-Korteweg, R. C.; Henning, P. A.: Neutral hydrogen in the nearby galaxies Dwingeloo 1 and Dwingeloo 2. In: Astronomy and Astrophysics. 309. Jahrgang, 1996, S.687–701, arxiv:astro-ph/9511020, bibcode:1996A&A...309..687B.