共 6 条
- [1] Negative ion emission from oxide coated filaments [J]. PHYSICAL REVIEW, 1925, 26 (03): : 0360 - 0363
- [2] MUELLER DW, 1931, PROGR SCH M AM PHYS
- [3] Richardson O W, 1921, EMISSION ELECT HOT B
- [4] RICHARDSON OW, 1916, PHYS REV, V7, P625
- [6] THOMSON JJ, RAYS POSITIVE ELECT, P137