The flat-spectrum radio quasar 3C 345 from the high to the low emission state M. Berton, N. H. Liao, G. La Mura, E. Järvelä, E. Congiu, L. Foschini, M. Frezzato, V. Ramakrishnan, X. L. Fan, A. Lähteenmäki et al. (10 more) A&A, 614 (2018) A148 Published online: 29 June 2018 DOI: 10.1051/0004-6361/201731625