TY - GEN AU - Rasmussen, A L AU - Simpson, P A AU - Sanders, A A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1989-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.89-3917 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1989 TI - Improved low-level silicon-avalanche-photodiode transfer standards at 1.064 micrometers: ER -