1980-11-25 /decus_20tap1_198111/01/decus/20-0003/pascal.opr 1981-02-21 /decuslib20-01/01/decus/20-0003/pascal.opr 1981-02-22 /decuslib10-07/01/43,50433/pascal.opr 1981-06-15 /decuslib10-11/01/43,50530/pascal.opr 1981-06-15 /decuslib10-11/01/43,50531/pascal.opr