共 8 条
[1]
CAMPBELL VN, 1962, AIRC41562FR
[2]
CAMPBELL VN, 1962, AIRC41462RP
[3]
CARR WJ, 1959, WADC59503 TECH REP
[4]
GLASER R, 1960, TEACHING MACHINES PR, P275
[7]
Stephens A. L., 1960, TEACHING MACHINES PR, P89
[8]
Zeigarnik B, 1927, PSYCHOL FORSCH, V9, P1