NED object is NGC 4321; Reference is 1994MNRAS.268..203C

   Figure 1. Contour plots of galaxies in the sample that have a number of
 compact radio components. Peak flux = 2.0217E-03 JY per BEAM. Levs =
 1.0000E-03 * (-0.300, -0.150, 0.300, 0.450, 0.600, 0.750, 1.000, 1.500, 2.000)