On-line 3CRR database: reference
Reference(s) for the field ``Best' radio map' for object NGC6109
O'Dea C.P., Owen F.N., 1985,
AJ, 90, 927
Leahy J.P., Bridle A.H., Strom R.G., 1998, Internet WWW page, at URL:
<http://www.jb.man.ac.uk/atlas/>