Karachentsev, I. D. (2005). "The Local Group and Other Neighboring Galaxy Groups". The Astronomical Journal 129: 178. doi:10.1086/426368.
Buta, R. J.; McCall, M. L. (1999). "The IC 342/Maffei Group Revealed". The Astrophysical Journal Supplement Series 124: 33. doi:10.1086/313255.
Kraan-Korteweg, R. C.; Loan, A. J.; Burton, W. B.; Lahav, O.; Ferguson, H. C.; Henning, P. A.; Lynden-Bell, D. (1994). "Discovery of a nearby spiral galaxy behind the Milky Way". Nature 372 (6501): 77. doi:10.1038/372077a0
Ivanov, V. D.; Alonso-Herrero, A.; Rieke, M. J.; McCarthy, D. (1999). "An Infrared Determination of the Reddening and Distance to Dwingeloo 1". The Astronomical Journal 118 (2): 826. doi:10.1086/300986.