Wang (2005). "Modeling the Sun’s Magnetic Field and Irradiance since 1713". The Astrophysical Journal625 (1): 522–538. doi:10.1086/429689. Bibcode: 2005ApJ...625..522W.
Vieira, L. E. A.; Norton, A.; Kretzschmar, M.; Schmidt, G. A.; Cheung, M. C. M. (2012). "How the inclination of Earth's orbit affects incoming solar irradiance". Geophys. Res. Lett.39: L16104. doi:10.1029/2012GL052950. Bibcode: 2012GeoRL..3916104V.
Wang (2005). "Modeling the Sun’s Magnetic Field and Irradiance since 1713". The Astrophysical Journal625 (1): 522–538. doi:10.1086/429689. Bibcode: 2005ApJ...625..522W.
Vieira, L. E. A.; Norton, A.; Kretzschmar, M.; Schmidt, G. A.; Cheung, M. C. M. (2012). "How the inclination of Earth's orbit affects incoming solar irradiance". Geophys. Res. Lett.39: L16104. doi:10.1029/2012GL052950. Bibcode: 2012GeoRL..3916104V.