A unique UV flare in the optical light curve of the quasar J004457.9+412344H. Meusinger, M. Henze, K. Birkle, W. Pietsch, B. Williams, D. Hatzidimitriou, R. Nesci, S. Ertel, A. Hinze, T. Bertold and B. KaminskyEPJ Web of Conferences, 39 (2012) 08001DOI: https://doi.org/10.1051/epjconf/20123908001