共 12 条
- [3] BERNAL JD, 1928, J SCI INSTRUM, V5, P1
- [5] GOLDSZTAUB S, 1947, CR HEBD ACAD SCI, V224, P458
- [7] MULLER A, 1939, J I ELECT ENG LOND, V84, P261
- [8] MYERS LM, 1939, ELECTRON OPTICS, P465
- [9] OOSTERKAMP WJ, 1948, PHILIPS RES REP, V3, P49
- [10] OOSTERKAMP WJ, 1948, PHILIPS RES REP, V3, P303