The awakening of BL Lacertae: observations by Fermi, Swift and the GASP-WEBTDOI: info:10.1093/mnras/stt1672v. 4361530–1545
Raiteri, C. M., Villata, M., D'Ammando, F., Larionov, V. M., Gurwell, M. A., Mirzaqulov, D. O., Smith, P. S., Acosta-Pulido, J. A., Agudo, I., Arévalo, M. J., Bachev, R., Benítez, E., Berdyugin, A., Blinov, D. A., Borman, G. A., Böttcher, M., Bozhilov, V., Carnerero, M. I., Carosati, D., Casadio, C., Chen, W. P., Doroshenko, V. T., Efimov, Yu S., Efimova, N. V., Ehgamberdiev, Sh A. et al. 2013. "The awakening of BL Lacertae: observations by Fermi, Swift and the GASP-WEBT." Monthly Notices of the Royal Astronomical Society, 436 1530–1545. https://doi.org/10.1093/mnras/stt1672.