3C 33: another case of photoionized soft X-ray emission in radio galaxies E. Torresi, P. Grandi, M. Guainazzi, G. G. C. Palumbo, G. Ponti and S. Bianchi A&A, 498 1 (2009) 61-66 Published online: 11 March 2009 DOI: 10.1051/0004-6361/200810944