BATSE observations of BL Lac Objects
  The Burst and Transient Source Experiment (BATSE) on the Compton Gamma-Ray Observatory has been shown to be sensitive to non-transient hard X-ray sources in our galaxy, down to flux levels of 100 mCrab for daily measurements, 3 mCrab for integrations over several years. We use the continuous BATSE database and the Earth Occultation technique to extract average flux values between 20 and 200 keV from complete radio- and X-ray- selected BL Lac samples over a 2 year period. 
V. Connaughton (1), C. R. Robinson (2), M. L. McCollough (2), S. A.   Laurent-Muehleisen (3) ((1) NASA Marshall Space Flight...