Adler-Golden, S. M., and J. R. Slusser. "Comparison of plotting methods for solar radiometer calibration." Journal of Atmospheric and Oceanic Technology 24.5 (2007): 935-938. http://uvb.nrel.colostate.edu/UVB/publications/Alternative_Langley.pdfArchived 2016-03-04 at the Wayback Machine They compare the traditional Langley plot with one obtained by plotting ln(I)/m versus 1/m.
Blumthaler, M.; Ambach, W.; Blasbichler, A. (1997). "Measurements of the spectral aerosol optical depth using a sun photometer". Theoretical and Applied Climatology. 57 (1–2): 95. Bibcode:1997ThApC..57...95B. doi:10.1007/BF00867980. S2CID121460704.
Blumthaler, M.; Ambach, W.; Blasbichler, A. (1997). "Measurements of the spectral aerosol optical depth using a sun photometer". Theoretical and Applied Climatology. 57 (1–2): 95. Bibcode:1997ThApC..57...95B. doi:10.1007/BF00867980. S2CID121460704.
Di Justo, Patrick, and Emily Gertz. Atmospheric Monitoring with Arduino: Building Simple Devices to Collect Data about the Environment. " O'Reilly Media, Inc.", 2012. http://it-ebooks.info/book/1961/ see pages 62-63
Rollin, E. M. "An introduction to the use of Sun-photometry for the atmospheric correction of airborne sensor data. Activities of the NERC EPFS in support of the NERC ARSF." ARSF Annual Meeting, Keyworth, Nottingham, UK, 22pp. 2000.http://www.ncaveo.ac.uk/site-resources/pdf/cimel.pdf
Blumthaler, M.; Ambach, W.; Blasbichler, A. (1997). "Measurements of the spectral aerosol optical depth using a sun photometer". Theoretical and Applied Climatology. 57 (1–2): 95. Bibcode:1997ThApC..57...95B. doi:10.1007/BF00867980. S2CID121460704.
Adler-Golden, S. M., and J. R. Slusser. "Comparison of plotting methods for solar radiometer calibration." Journal of Atmospheric and Oceanic Technology 24.5 (2007): 935-938. http://uvb.nrel.colostate.edu/UVB/publications/Alternative_Langley.pdfArchived 2016-03-04 at the Wayback Machine They compare the traditional Langley plot with one obtained by plotting ln(I)/m versus 1/m.
Brooks, David R., and Forrest M. Mims. "Development of an inexpensive handheld LED‐based Sun photometer for the GLOBE program." Journal of Geophysical Research: Atmospheres (1984–2012) 106.D5 (2001): 4733-4740. http://onlinelibrary.wiley.com/doi/10.1029/2000JD900545/pdf