1981-05-17 /BB-D489E-SB/02/sort.tec 1981-05-17 /BB-D489E-SB/03/sort.tec 1981-05-17 /BB-H580C-SB_1981/03/sort.tec 1981-05-17 /BB-H580C-SB_1981/08/sort.tec 1981-05-19 /BB-D489E-SB/04/sort.tec 1981-05-19 /BB-H580C-SB_1981/09/sort.tec 1985-10-08 /BB-H580E-SB_1985/04/sort.tec 1985-10-08 /cobol12c/04/sort.tec