TY - CONF AU - Maritoni Litorja AU - B. Carol Johnson AU - J Fowler C2 - SPIE Conference on Optical Engineering and Applications | 2007 |, Undefined DA - 2008-10-16 14:10:14 LA - en PB - SPIE Conference on Optical Engineering and Applications | 2007 |, Undefined PY - 2008 TI - Comparison of Area Measurements of Apertures for Exo-Atmospheric Solar Irradiance Between NIST and JPL ER -