Trusock, Tom: Small Wonders: Cassiopeia. In: Cloudy Nights Telescope Reviews. cloudynights.com, 6. November 2005 (cloudynights.com [PDF]).
doi.org
Fingerhut, R. L., McCall, M. L.; De Robertis, M.; Kingsburgh, R. L.; Komljenovic, M.; Lee, H.; Buta, R. J.: "The Extinction and Distance of Maffei 1". In: The Astrophysical Journal. 587 (2). Jahrgang, 2003, S.672., doi:10.1086/368339.
Fingerhut, R. L., Lee, H.; McCall, M. L.; Richer, M. G.: "The Extinction and Distance of Maffei 2 and a New View of the IC 342/Maffei Group". In: The Astrophysical Journal. 655 (2). Jahrgang, 2007, S.814, doi:10.1086/509862.
Davidge, T. J., Van Den Bergh, S.: "The Detection of Bright Asymptotic Giant Branch Stars in the Nearby Elliptical Galaxy Maffei 1". In: The Astrophysical Journal. 553 (2). Jahrgang, 2001, S.L133, doi:10.1086/320692.
Maffei, P.: "Infrared Object in the Region of IC 1895". In: Publications of the Astronomical Society of the Pacific. 80. Jahrgang, 1968, S.618, doi:10.1086/128698, bibcode:1968PASP...80..618M.
Bell, M. B., Seaquist, E. R.; Braun, L. D.: "Nonthermal Radio Emission from an Infrared Object in the Region of IC 1805". In: The Astrophysical Journal. 161. Jahrgang, 1970, S.L13, doi:10.1086/180561.
Karachentsev, I. D., Sharina, M. E.; Dolphin, A. E.; Grebel, E. K.: "Distances to nearby galaxies around IC 342". In: Astronomy and Astrophysics. 408. Jahrgang, 2003, S.111, doi:10.1051/0004-6361:20030912, bibcode:2003A&A...408..111K.
Buta, R. J., McCall, M. L.: "The IC 342/Maffei Group Revealed". In: The Astrophysical Journal Supplement Series. 124. Jahrgang, 1999, S.33, doi:10.1086/313255.
Buta, R., McCall, M. L.: "Maffei 1 with the Hubble Space Telescope". In: The Astronomical Journal. 125 (3). Jahrgang, 2003, S.1150, doi:10.1086/367789.
Davidge, T. J.: "The Upper Asymptotic Giant Branch of the Elliptical Galaxy Maffei 1 and Comparisons with M32 and NGC 5128". In: The Astronomical Journal. 124 (4). Jahrgang, 2002, S.2012, doi:10.1086/342535.
Paolo Maffei: My researches at the infrared doors. In: Memorie della Società Astronomica Italiana. 74. Jahrgang, 2003, S.19–28, bibcode:2003MmSAI..74...19M.
Maffei, P.: "Infrared Object in the Region of IC 1895". In: Publications of the Astronomical Society of the Pacific. 80. Jahrgang, 1968, S.618, doi:10.1086/128698, bibcode:1968PASP...80..618M.
Karachentsev, I. D., Sharina, M. E.; Dolphin, A. E.; Grebel, E. K.: "Distances to nearby galaxies around IC 342". In: Astronomy and Astrophysics. 408. Jahrgang, 2003, S.111, doi:10.1051/0004-6361:20030912, bibcode:2003A&A...408..111K.