AAVSO Alert Notice 443: Long-Term Monitoring of Four AGN in Support of Ground-Based SpectroscopyAAVSO Alert Notice 443: Long-Term Monitoring of Four AGN in Support of Ground-Based Spectroscopy
AAVSO Alert Notice 443<br /> Long-term monitoring of four AGN in support of ground-based spectroscopy<br /> July 8, 2011 <p>Dr. Misty Bentz of Georgia State University requests observations of four active galactic nuclei