共 22 条
[1]
ALLEN JW, 1959, J ELECTRON CONTR, V7, P518
[2]
BOLLING GF, 1960, MECS, V12, P97
[4]
FOLBERT OG, 1954, Z NATURF, VA 9, P1050
[9]
GRIMMEISS HG, 1960, PHILIPS RES REP, V15, P290
[10]
HOLD DB, 1958, NATURE, V181, P109