CHRASTINA, Marek,
Gabriel SZÁSZ, Karol PETRÍK a Ladislav HRIC. Updated ephemeris, (O-C) diagrams and light fluctuations of the supersoft X-ray source QR And. In
Proceedings of the 37th Conference on Variable Stars Research. OEJV, 0023: Open European Journal on Variable stars, 2006, s. 78-79. ISSN 1801-5964.