Probing the ionized ISM of the CSS quasar 3C 277.1 - I. ObservationsW. D. Cotton, C. Fanti, R. Fanti, G. Bicknell and R. E. SpencerA&A, 448 2 (2006) 535-545DOI: https://doi.org/10.1051/0004-6361:20054338