Willson, R. C., and A. V. Mordvinov (2003), Secular total solar irradiance trend during solar cycles 21–23, Geophys. Res. Lett., 30 (5), 1199, doi:10.1029/2002GL016038 ACR (页面存档备份,存于互联网档案馆)
The Unveiling of Venus: Hot and Stifling. Science News. 1976-06-19, 109 (25): 388 [2010-02-03]. 100 watts per square meter ... 14,000 lux ... corresponds to ... daytime with overcast clouds
Naylor, Mark; Kevin C. Farmer. Sun damage and prevention. Electronic Textbook of Dermatology. The Internet Dermatology Society. 1995 [2008-06-02]. (原始内容存档于2008-07-05).引文使用过时参数coauthors (帮助)
Willson, R. C., and A. V. Mordvinov (2003), Secular total solar irradiance trend during solar cycles 21–23, Geophys. Res. Lett., 30 (5), 1199, doi:10.1029/2002GL016038 ACR (页面存档备份,存于互联网档案馆)
Naylor, Mark; Kevin C. Farmer. Sun damage and prevention. Electronic Textbook of Dermatology. The Internet Dermatology Society. 1995 [2008-06-02]. (原始内容存档于2008-07-05).引文使用过时参数coauthors (帮助)
Craig F. Bohren. Atmospheric Optics(PDF). [2010-12-22]. (原始内容存档(PDF)于2013-12-06).