共 50 条
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- [8] PUNCHES WITH AN ELECTROMAGNETIC DRIVE FOR EDGE-PUNCHED AND PEEK-A-BOO CARDS NAUCHNO-TEKHNICHESKAYA INFORMATSIYA SERIYA 1-ORGANIZATSIYA I METODIKA INFORMATSIONNOI RABOTY, 1974, (06): : 18 - 18
- [10] CODING OF EDGE - PUNCHED CARDS NAUCHNO-TEKHNICHESKAYA INFORMATSIYA SERIYA 1-ORGANIZATSIYA I METODIKA INFORMATSIONNOI RABOTY, 1970, (06): : 25 - &