GK Cep
References
Bartolini1965
Bartolini, C., Mammano, A., Mannino, G. & Margoni, R. “BV 382: An Early Type Contact System”: 1965, Contributi Dell’Osservatorio Astrofisico Dell’Universita Di Padova In Asiago, No. 168, pp. 3-19
Niarchos1991
Niarchos, P.G., Rovithis-Livaniou, H. & Rovithis, P. “The Eclipsing Binary GK Cephei - New BV Photoelectric Observations and Light Curves Analysis”: 1991, Astronomy and Astrophysics Supplement Series, Volume 88, pp. 471-496
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1991A%26AS...88..471N&db_key=AST&high=3f2ea4260a19956