^ 5.05.1Jaffe, W.; Gavazzi, G.; Valentijn, E. Radio continuum survey of the Coma/A1367 supercluster. I - 610 MHz observations of CGCG galaxies in four groups. The Astronomical Journal. 1986-02-01, 91: 199–203. Bibcode:1986AJ.....91..199J. ISSN 0004-6256. doi:10.1086/114000.
^Burns, Jack O.; Hanisch, Robert J.; White, Richard A.; Nelson, Eric R.; Morrisette, Kim A.; Moody, J. Ward. A VLA 20 CM survey of poor groups of galaxies. The Astronomical Journal. 1987-09-01, 94: 587–617. Bibcode:1987AJ.....94..587B. ISSN 0004-6256. doi:10.1086/114494.
^Batuski, David J.; Hanisch, Robert J.; Burns, Jack O. VLA observations of radio sources in interacting galaxy pairs in poor clusters. The Astronomical Journal. 1992-04-01, 103: 1077–1083. Bibcode:1992AJ....103.1077B. ISSN 0004-6256. doi:10.1086/116126.