共 22 条
[2]
[Anonymous], 1987, ROAD STRUCTURE
[4]
BROOKS TA, 1984, J AM SOC INFORM SCI, V36, P223
[5]
Clark K. E., 1957, AM PSYCHOL SURVEY GR
[6]
COHEN J, 1972, STATISTICAL POWER AN
[7]
Cole J., 1973, SOCIAL STRATIFICATIO
[8]
CRONBACH LJ, 1972, DEPENDABILITY BEHAVI