On-line 3CRR database: reference
Reference(s) for the field ``Best' radio map' for object 3C66B
Leahy J.P., Jägers W.J., Pooley G.G., 1986,
A&A, 156, 234
Hardcastle M.J., Alexander P., Pooley G.G., Riley J.M., 1996,
MNRAS, 278, 273