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. Bibcode:2016MNRAS.456.4040T. doi:10.1093/mnras/stv2862.
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. Bibcode:2016MNRAS.456.4040T. doi:10.1093/mnras/stv2862.
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. Bibcode:2016MNRAS.456.4040T. doi:10.1093/mnras/stv2862.