1980-05-20 /decus_20tap1_198111/01/decus/20-0003/heap.doc 1980-05-20 /decuslib10-07/01/43,50433/heap.doc 1980-05-20 /decuslib10-11/01/43,50530/heap.doc 1980-05-20 /decuslib10-11/01/43,50531/heap.doc 1980-05-20 /decuslib20-01/01/decus/20-0003/heap.doc