AK Her

References

1. Sanford1934
   Sanford, Roscoe F. “Approximate Spectroscopic Elements for AG Virginis, RW Coronae Borealis, and AK Herculis”: The Astrophysical Journal, Volume 79, pp. 89-94
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1934ApJ....79...89S&db_key=AST&high=3f567b0b2c16040

2. Woodward1977
   Woodward, E. J. & Wilson, R. E. “AK Herculis – An Atypical W UMa-Type System”: 1977, Astrophysics & Space Science, Volume 52, pp. 387-414
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1977Ap%26SS..52..387W&db_key=AST&high=3f567b0b2c31242

3. Barker1979
   Barker, L. A. & Herczeg, T. J. “Photoelectric observations and period study of AK Herculis”: 1979, Publications of the Astronomical Society of the Pacific, Volume 91, pp. 247-251
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1979PASP...91..247B&db_key=AST&high=3f567b0b2c31242

4. Bookmyer1979
   Bookmyer, Beverly B. & Kaitchuck, Ronald H. “R and I Light Curves and Comparison of B and V Light Curves of AK Herculis”: 1979, Publications of the Astronomical Society of the Pacific, Volume 91, pp. 234-246
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1979PASP...91..234B&db_key=AST&high=3f567b0b2c31242

5. Nagy1985
   Nagy, Theresa A. “Light-Curve Modeling of the Binary Star AK Herculis”: 1985, Publication of the Astronomical Society of the Pacific, Volume 97, pp. 1005-1010
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1985PASP...97.1005N&db_key=AST&high=3f567b0b2c24881

6. Tunca1987
   Tunca, Z., Keskin, V., Akan, M. C., Everen, S. & Ibanoglu, C. “The New Light Curves and Period Study of AK Herculis”: 1987, Astrophysics & Space Science, Volume 136, pp. 63-76
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1987Ap%26SS.136...63T&db_key=AST&high=3f567b0b2c24881

7. Livaniou2001
   Rovithis-Livaniou, Helen, Fragoulopoulou, Emma, Sergis, Nick, Rovithis, Petros & Kranidiotis, Athanassios “Study of the Contact Binary AK Herculis: Light-Curve Analysis and Orbital Period Investigation”: 2001, Astrophysics & Space Science, Volume 275, pp. 337-348
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2001Ap%26SS.275..337R&db_key=AST&high=3f567b0b2c24881

8. Li2001
   Li, Lifang, Zhang, Fenghui & Han, Zhanwen “The W Ursae Majoris System AK Herculis”: 2001, Astronomy and Astrophysics, Volume 368, pp. 595-600
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2001A%26A...368..595L&db_key=AST&high=3f567b0b2c24881