[HTML][HTML] An optical and radio survey of the nuclei of bright galaxies-Activity in normal galactic nuclei

TM Heckman�- Astronomy and Astrophysics, vol. 87, no. 1-2�…, 1980 - adsabs.harvard.edu
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Astron. Astrophys. 87, 152-164 (1980) ASTRONOMY AND ASTROPHYSIGS An Optical and
Radio Survey of the Nuclei of Bright Galaxies Activity in Normal Galactic Nuclei TM Heckman***
Sterrewacht Leiden, Postbus 9513, NL-2300 RA Leiden, The Netherlands Received April 9�…