Schweyer, T. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Zola, S., Valtonen, M., Bhatta, G., Goyal, A., Debski, B., Baran, A., et al. (2016). A search for QPOs in the blazar OJ287: preliminary results from the 2015/2016 observing campaign. Galaxies, 4(4): 41. doi:10.3390/galaxies4040041.