TY - GEN AU - Ruff, A W AU - Jahanmir, S C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1989-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.89-4170 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1989 TI - Measurements of tribological behavior of advanced materials::summary of U. S. results on Vamas round-robin no. 2 ER -