TY - GEN AU - Boisvert, Ronald F AU - Howe, Sally E AU - Kahaner, David K C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1990-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.4475 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1990 TI - The guide to available mathematical software problem classification system: ER -