J. Brunzendorf, H. Meusinger. The galaxy cluster Abell 426 (Perseus). A catalogue of 660 galaxy positions, isophotal magnitudes and morphological types. „Astronomy and Astrophysics Supplement”. 139, s. 141–161, październik 1999. DOI: 10.1051/aas:1999111. Bibcode: 1999A&AS..139..141B. (ang.).
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J. Brunzendorf, H. Meusinger. The galaxy cluster Abell 426 (Perseus). A catalogue of 660 galaxy positions, isophotal magnitudes and morphological types. „Astronomy and Astrophysics Supplement”. 139, s. 141–161, październik 1999. DOI: 10.1051/aas:1999111. Bibcode: 1999A&AS..139..141B. (ang.).
