共 4 条
[1]
CLARK, 1953, J APPL PHYSL, V6, P189
[2]
CLARK LC, 1956, T AM SOC ART INT ORG, V2, P41
[3]
DAVIES PW, 1942, REV SCI INSTR, V13, P534
[4]
REEVES, 1957, FEDERATION P, V16, P693