TY - GEN AU - Treu, Siegfried C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.500-63 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - A testbed for providing uniformity to user-computer interaction languages: ER -