共 73 条
[11]
Cleverdon CW, 1966, ASLIB CRANFIELD RES
[12]
Cleverdon CW, 1959, P INT C SCI INF WASH, V1, P687
[13]
CUADRA CA, 1967, J DOC, V23
[14]
DAMERAU FJ, 1963, RC894 IBM RES CENT R
[15]
DENNIS SF, 1967, INFORMATION RETRIEVA
[16]
DOYLE LB, 1965, J ASS COMPUT MACH, V12
[17]
FANGMEYER H, 1968, EURATOM AUTOMATIC IN
[18]
FELS EM, 1963, AM DOC, V14
[19]
GIULIANO VE, 1966, ESDTR66405 ARTH D LI
[20]
GULIANO VE, 1965, 269 US NAT BUR STAND