共 84 条
- [1] AVAKIAN EA, 1968, DEC WORKSH KEYS KEYB
- [2] AVANZINO L, 1969, PROPOSED US STANDARD
- [3] AYRES A, 1965, Patent No. 3225883
- [4] BARMACK JE, 1966, AD636170
- [5] BERGOS R, 1960, NATIONAL BUSINESS ED, V29, P9
- [8] CAMUSO A, 1968, COMPUTER DESIGN, V7, P32
- [9] CARLSON G, 1963, DATAMATION, V9, P34