WW Cyg

References

1. Struve1946
   Struve, Otto “Spectrographic Observations of Fourteen Eclipsing Binaries”: 1946, The Astrophysical Journal, Volume 104, pp. 253-281
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1946ApJ...104..253S&db_key=AST&high=3ee55bcf0912763

2. Hall1972
   Hall, D. S. & Wawrukiewicz, A. S. “The Eclipsing Binary WW Cygni, An Unlikely Candidate for Pre-Main-Sequence Contraction”: 1972, Publications of the Astronomical Society of the Pacific, Volume 84, pp 541-551
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1972PASP...84..541H&db_key=AST&high=3f567b0b2c05808

3. Mezzetti1980
   Mezzetti, M., Cester, B., Giuricin, G., Mardirossian, F. “Revised Photometric Elements of Eight Sd-Systems”: 1980, Astronomy & Astrophysics Supplement Series, Volume 39, pp. 265-272
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1980A%26AS...39..265M&db_key=AST&high=3f567b0b2c05808