@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000850, author = {Campanelli, Monica and Estellés, Víctor and Tomasi, Claudio and Nakajima, Teruyuki and Malvestuto, Vincenzo and Martínez-Lozano, José Antonio}, issue = {14}, journal = {Applied optics}, month = {May}, pages = {2688--2702}, title = {Application of the SKYRAD Improved Langley plot method for the in situ calibration of CIMEL Sun-sky photometers}, volume = {46}, year = {2007} }