source: http://casjobs.sdss.org Publications:
  1. J. M.van der Hulst,E.Hummel, The first detection of a radio continuum bridge between interacting galaxies,A&A, vol. 150, no. 1, Sept. 1985, p. L7, L8.
  2. N. G. Kantharia, et al., 2005,GMRT Observations of the Group Holmberg 124: Evolution by Tidal Forces and Ram Pressure ?