TY - GEN AU - B L Danielson C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1976-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.677 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1976 TI - Laser attenuators for the production of low power beams in the visible and 1.06 mu] regions: ER -