@article{article9e20a822,
title   = {Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil},
author = {Escobedo, João F and Gomes, Eduardo N and Oliveira, Amauri Pereira de and Soares, Jacyra Ramos},
year = {2011},
doi = {10.1016/j.renene.2010.06.018},
journal   = {Renewable Energy}
}