Thực đơn
Sigma SagittariiThực đơn
Sigma SagittariiLiên quan
Sigma Sigmar Gabriel Sigma Octantis Sigma Leonis Sigma Sagittarii Sigma Pegasi Sigmaringen Sigma Aquilae Sigma-Aldrich Sigma CorporationTài liệu tham khảo
WikiPedia: Sigma Sagittarii http://adsabs.harvard.edu/abs/1968ApJS...15..459G http://adsabs.harvard.edu/abs/1979MNRAS.189..601U http://adsabs.harvard.edu/abs/1982MSS...C03....0H http://adsabs.harvard.edu/abs/1994ApJ...421..705C http://adsabs.harvard.edu/abs/1997A&A...323L..49P http://adsabs.harvard.edu/abs/1999VeARI..35....1W http://adsabs.harvard.edu/abs/2001AJ....122.3466M http://adsabs.harvard.edu/abs/2002ApJ...573..359A http://adsabs.harvard.edu/abs/2007A&A...474..653V http://adsabs.harvard.edu/abs/2009A&A...501..297Z