V523 Sgr
References
Woodward1989
Woodward, E. J. & Koch, R. H., “Old and New Observations of V523 Sagittarii”: 1989, The Astronomical Journal, Volume 97, pp. 842-847
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1989AJ.....97..842W&db_key=AST&high=3f2ea4260a27434Lacy1993
Lacy, Claud H. Sandberg, “The Photometric Orbit and Apsidal Motion of V523 Sagittarii”: 1993, The Astronomical Journal, Volume 105, pp. 630-636
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1993AJ....105..630S&db_key=AST&high=3f2ea4260a27434