共 7 条
- [1] BEYNON JH, 1956, MICROCHIM ACTA, V1, P437
- [2] BIERI, 1955, Z NATURFORSCH A, V10, P659
- [3] HINTENBERGER H, 1957, Z NATURFORSCH PT A, V12, P140
- [4] ANGULAR ABERRATIONS IN SECTOR SHAPED ELECTROMAGNETIC LENSES FOR FOCUSING BEAMS OF CHARGED PARTICLES [J]. PHYSICAL REVIEW, 1953, 91 (01): : 10 - 17
- [6] NIER AOC, 1953, NBS522 CIRC, P29