共 11 条
[1]
BLEIR RF, 1967, 22ND P ACM NAT C, P41
[2]
*CODASYL DAT BAS, 1969, CR1157019180 REP
[4]
DUFFY GF, 1969, 1969 AFIPS C P SPRIN, V34, P339
[5]
*IBM CORP, 1972, GH2010282 CUST INF C
[6]
*IBM CORP, 1970, GH2008920 GEN INF SY
[7]
*IBM CORP, 1971, GH2007651 INF MAN SY
[8]
POSTLEY JA, 1968, DATAMATION, V14, P28
[9]
SENKO ME, 1969, ANNU REV INFORM SCI, V4, P111
[10]
TOU JT, 1969, ADVANCES INFORMATION, V2