1978-04-21 /bb-d868a-bm/01/3-sources/t2020.ctl 1978-08-25 /BB-4170G-SM/01/sources/t2020.ctl 1978-08-25 /bb-d868b-bm_tops20_v3a_2020_dist/01/3a-sources/t2020.ctl 1978-08-25 /AP-4178E-RM/01/swskit-sources/t2020.ctl 1979-09-29 /BB-4170H-SM/01/sources/t2020.ctl 1979-09-29 /BB-D868C-BM/01/4-sources/t2020.ctl 1979-09-29 /bb-d868c-bm_tops20_v4_2020_distr/01/4-sources/t2020.ctl 1979-09-29 /BB-D868D-BM/01/4-sources/t2020.ctl 1979-09-29 /BB-K911B-SM/01/sources/t2020.ctl 1982-11-08 /BB-Y393J-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393U-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393T-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393S-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393R-SM_1990/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393Q-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393N-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393M-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393K-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393I-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393H-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393G-SM/01/monitor-sources/t2020.ctl 1982-11-08 /BB-Y393D-SM/01/monitor-sources/t2020.ctl 1982-11-08 /tops20v41_monsrc/01/monitor-sources/t2020.ctl 1983-02-02 /BB-Y393F-SM/01/monitor-sources/t2020.ctl 1983-02-02 /BB-Y393E-SM/01/monitor-sources/t2020.ctl 1983-02-02 /bb-d868e-bm_tops20_v41_2020_dist_1of2/01/4-1-sources/t2020.ctl