TY - GEN AU - Wang, Qiming C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1994-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.5398 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1994 TI - User's guide for the PHIGS Validation Tests (version 2.1): ER -