BVRI photometry of 3C 66A and OJ 287. The Italian contribution to the OJ94 project.
Journal article published in 1999 by
E. Massaro,
M. Maesano,
F. Montagni,
R. Nesci,
G. Tosti,
M. Fiorucci,
M. Villata,
C. M. Raiteri 
,
G. Sobrito
,
G. Sobrito
