共 30 条
[11]
Dyer, 1932, ST LOUIS L REV, V17, P125
[12]
EDELMAN JM, 1950, LICENSING RADIO SERV
[13]
Fletcher, 1940, AIR L REV, V11, P345
[14]
Hettinger, 1939, AIR L REV, V9, P115
[15]
Kennedy, 1932, AIR L REV, V3, P16
[16]
Lissner, 1946, AM J ECON SOCIOL, V5, P552
[17]
McCain, 1940, AIR L REV, V11, P144
[18]
Niles, 1934, AIR L REV, V5, P132
[19]
Rogers, 1924, ANNALS, V112, P254
[20]
Rogers, 1924, ANNALS, V112, P251