Bi-directional reflectance spectra (0.3-2.6 micrometer) were measured for four Apollo soils (10084, 12070, 14259, 62231) using the RELAB. These data include eighteen different configurations of i and e.
Pieters C. M. et al., 1991. Birdirectional Spectroscopy of Returned Lunar Soil: Detailed "Ground Truth" for Planetary Remote Sensors, LPSC XXII., pp.1069-1070
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