TY - RPRT TI - Validated products list, 1992 no. 4: programming languages, database language SQL, graphics, GOSIP, POSIX, computer security PY - 1992 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 4951 DO - 10.6028/NIST.IR.4951 ER -