TY - RPRT TI - Radiometric standards in the vacuum ultraviolet AU - Klose, Jules Z AU - Bridges, J Melvin AU - Ott, William R PY - 1987 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS SP 250-3 DO - 10.6028/NBS.SP.250-3 ER -