Detection of six rapidly scintillating active galactic nuclei and the diminished variability of J1819+3845J. Y. Koay, H. E. Bignall, J.-P. Macquart, D. L. Jauncey, B. J. Rickett and J. E. J. LovellA&A, 534 (2011) L1DOI: https://doi.org/10.1051/0004-6361/201117805