Fu-Yuan Zhao, R. G. Strom, Shi-Yang Jiang: The Guest Star of AD185 Must Have Been a Supernova, Chinese Journal of Astronomy and Astrophysics, 2006 roč. 6, č. 5, str. 635-640; tiež http://www.iop.org/EJ/abstract/1009-9271/6/5/17 navštívené 18. decembra 2006