Lacy, Claud H. (1979-03), “Distances to eclipsing binaries. III. Masses, radii and absolute magnitudes of 96 stars”, Astrophysical Journal228: 817-827, Bibcode: 1979ApJ...228..817L, doi:10.1086/156908
Webbink, Ronald F. (1976), “The Evolution of Low-Mass Close Binary Systems. II. 1.50 M☉ + 0.75 M☉: Evolution Into Contact”, Astrophysical Journal Supplement Series32: 583-601, Bibcode: 1976ApJS...32..583W, doi:10.1086/190408
harvard.edu
ui.adsabs.harvard.edu
Lacy, Claud H. (1979-03), “Distances to eclipsing binaries. III. Masses, radii and absolute magnitudes of 96 stars”, Astrophysical Journal228: 817-827, Bibcode: 1979ApJ...228..817L, doi:10.1086/156908
Williams, David B. (1987-12), “New Minima Times and Light Elements for sigma Aquilae”, Information Bulletin on Variable Stars3118: 1, Bibcode: 1987IBVS.3118....1W
Webbink, Ronald F. (1976), “The Evolution of Low-Mass Close Binary Systems. II. 1.50 M☉ + 0.75 M☉: Evolution Into Contact”, Astrophysical Journal Supplement Series32: 583-601, Bibcode: 1976ApJS...32..583W, doi:10.1086/190408
Dommanget, J.; Nys, O. (2002-03), “Catalog of Components of Double & Multiple stars”, VizieR On-line Data Catalog: I/274, Bibcode: 2002yCat.1274....0D