TY - GEN AU - Kaetzel, Lawrence J AU - Clifton, James R AU - Struble, Leslie J C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1991-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.4650 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1991 TI - Guidelines for the development of computer based models in a cementitious materials modeling laboratory: ER -