Optical and radio variability of the northern VHE gamma-ray emitting BL Lacertae objects
E. J. Lindfors, T. Hovatta, K. Nilsson, R. Reinthal, V. Fallah Ramazani, V. Pavlidou, W. Max-Moerbeck, J. Richards, A. Berdyugin, L. Takalo, A. Sillanpää and A. C. S. Readhead
A&A, 593 (2016) A98
DOI: https://doi.org/10.1051/0004-6361/201628420
