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