XX Cep

References

1. Struve1946
   Struve, Otto “Spectrographic Observations of Eleven Eclipsing Binaries”: 1946, The Astrophysical Journal, Volume 103, pp. 76-98
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1946ApJ...103...76S&db_key=AST&high=3f567b0b2c12837

2. Bonifazi1986
   Bonifazi, A. & Guarnieri, A. “Photoelectric Study of the Low-mass Semidetached System XX Cephei”: 1986, Astronomy & Astrophysics, Volume 156, pp. 38-50
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986A%26A...156...38B&db_key=AST&high=3f567b0b2c12129