Name of the Speaker(s): Dr. Joachim Siebert
Institution:Max-Planck Institut f\"ur extraterrestrische Physik
Title of the communication:
X-ray properties of the Parkes sample of
flat-spectrum radio sources
Preliminary abstract (12 lines max.):
We investigate the X-ray properties of a
complete sample of about 300 flat-spectrum radio sources from the Parkes
catalog using the ROSAT All-Sky Survey and public pointed observations. First
results of this study will be presented.