@conference{98f2c18e7043499785a4a438facae75d,
title = "Measurement and Comparison of the Ratio, of the Direct Beam to Normal Hemispherical Solar Spectra, in Various Parts of the World",
author = "NREL",
year = "2003",
language = "American English",
pages = "Vol. C: 2255--2258",
note = "3rd World Conference on Photovoltaic Energy Conversion (WCPEC-3): Joint Conference of 13th PV Science and Engineering Conference, 30th IEEE PV Specialists Conference, and 18th European PV Solar Energy Conference ; Conference date: 11-05-2003 Through 18-05-2003",
}