Fermi LAT and GASP detections of a concurrent GeV and optical flare from the blazar OJ 287
Journal article published in 2009 by
S. Ciprini,
D. Gasparrini,
L. C. Reyes,
Y. T. Tanaka,
G. Tosti,
M. Villata,
C. M. Raiteri 
,
L. O. Takalo
,
L. O. Takalo
