The correlated optical and radio variability of BL LacertaeM. Villata, L. O. Takalo, M. F. Aller et al.|Astronomy and Astrophysics|2009Cited by 86
The WEBT Campaign on the Blazar 3C 279 in 2006M. Böttcher, K. Nilsson, Sarbani Basu et al.|The Astrophysical Journal|2007Cited by 77