1980-05-07 /decus_20tap5_198111/01/decus/20-0146/keywrd.for 1980-05-07 /decuslib20-05/01/decus/20-0146/keywrd.for 1980-08-09 /decuslib10-08/01/43,50506/keywrd.for 1983-07-10 /decuslib10-11/01/43,50542/keywrd.for 1983-07-10 /decuslib20-07/01/decus/20-0170/keywrd.for