TY - RPRT TI - A prototype expert system : an automated advisor to select data sources from chemical information databases AU - Fong, Elizabeth N AU - Dabrowski, Christopher E PY - 1988 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 88-3689 DO - 10.6028/NBS.IR.88-3689 ER -