TY - RPRT TI - Development of optimum runway lights for jet aircraft : interim report no. 1 AU - Douglas, C A AU - Nimeroff, I AU - Hill, A N PY - 1956 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS report ; 4741 DO - 10.6028/NBS.RPT.4741 ER -