共 15 条
[1]
[Anonymous], 1952, Psychometrika, V17, P401
[3]
Coombs C., 1965, THEORY DATA
[6]
HELM C, 1960, SUCCESSIVE INTERVALS
[8]
LINGOES JC, 1965, BEHAV SCI, V10, P183
[9]
MELLINGER J, THESIS U CHICAGO