TY - RPRT TI - Development of improved method for measurement of spectral irradiance from solar simulators AU - Stair, Ralph AU - Waters, William R AU - Jackson, John K PY - 1965 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 8960 DO - 10.6028/NBS.RPT.8960 ER -