Hajian, Arsen R.; Armstrong, J. T.; Hummel, C. A.; Benson, J. A.; et al. (March 1998). «Direct Confirmation of Stellar Limb Darkening with the Navy Prototype Optical Interferometer». The Astrophysical Journal496 (1): 484. Bibcode:1998ApJ...496..484H. doi:10.1086/305388.
Hajian, Arsen R.; Armstrong, J. T.; Hummel, C. A.; Benson, J. A.; et al. (March 1998). «Direct Confirmation of Stellar Limb Darkening with the Navy Prototype Optical Interferometer». The Astrophysical Journal496 (1): 484. Bibcode:1998ApJ...496..484H. doi:10.1086/305388.