Troyer, Jon; Starkey, David; Cackett, Edward M.; Bentz, Misty C.; Goad, Michael R.; Horne, Keith; Seals, James E. (14 January 2016). "Correlated X-ray/ultraviolet/optical variability in NGC 6814". Monthly Notices of the Royal Astronomical Society. 456 (4): 4040–4050. arXiv:1509.01124. डीओआइ:10.1093/mnras/stv2862. बिबकोड:2016MNRAS.456.4040T.
Bentz, Misty C.; Walsh, Jonelle L.; Barth, Aaron J.; Yoshii, Yuzuru; Woo, Jong-Hak; Wang, Xiaofeng; Treu, Tommaso; Thornton, Carol E.; Street, Rachel A. (June 2010). "The Lick AGN Monitoring Project: Reverberation Mapping of Optical Hydrogen and Helium Recombination Lines". The Astrophysical Journal. 716 (2): 993. arXiv:1004.2922. डीओआइ:10.1088/0004-637X/716/2/993. बिबकोड:2010ApJ...716..993B.
Troyer, Jon; Starkey, David; Cackett, Edward M.; Bentz, Misty C.; Goad, Michael R.; Horne, Keith; Seals, James E. (14 January 2016). "Correlated X-ray/ultraviolet/optical variability in NGC 6814". Monthly Notices of the Royal Astronomical Society. 456 (4): 4040–4050. arXiv:1509.01124. डीओआइ:10.1093/mnras/stv2862. बिबकोड:2016MNRAS.456.4040T.
Bentz, Misty C.; Walsh, Jonelle L.; Barth, Aaron J.; Yoshii, Yuzuru; Woo, Jong-Hak; Wang, Xiaofeng; Treu, Tommaso; Thornton, Carol E.; Street, Rachel A. (June 2010). "The Lick AGN Monitoring Project: Reverberation Mapping of Optical Hydrogen and Helium Recombination Lines". The Astrophysical Journal. 716 (2): 993. arXiv:1004.2922. डीओआइ:10.1088/0004-637X/716/2/993. बिबकोड:2010ApJ...716..993B.
Troyer, Jon; Starkey, David; Cackett, Edward M.; Bentz, Misty C.; Goad, Michael R.; Horne, Keith; Seals, James E. (14 January 2016). "Correlated X-ray/ultraviolet/optical variability in NGC 6814". Monthly Notices of the Royal Astronomical Society. 456 (4): 4040–4050. arXiv:1509.01124. डीओआइ:10.1093/mnras/stv2862. बिबकोड:2016MNRAS.456.4040T.
Bentz, Misty C.; Walsh, Jonelle L.; Barth, Aaron J.; Yoshii, Yuzuru; Woo, Jong-Hak; Wang, Xiaofeng; Treu, Tommaso; Thornton, Carol E.; Street, Rachel A. (June 2010). "The Lick AGN Monitoring Project: Reverberation Mapping of Optical Hydrogen and Helium Recombination Lines". The Astrophysical Journal. 716 (2): 993. arXiv:1004.2922. डीओआइ:10.1088/0004-637X/716/2/993. बिबकोड:2010ApJ...716..993B.