Gaur H.; Gupta A.; Bachev R.; Strigachev A.; Semkov E.; Wiita P.; Volvach A.; Gu M.; Agarwal A.; Agudo I.; Aller M.; Aller H.; Kurtanidze O.; Kurtanidze S.; Lähteenmäki A.; Peneva S.; Nikolashvili M.; Sigua L.; Tornikoski M.; Volvach L.
(2015)
© ESO, 2015. Context. We extensively observed the prototype blazar, BL Lacertae, in optical and radio bands during an active phase in the period 2010-2013 when the source showed several prominent outbursts. We searched for ...