共 7 条
- [2] de Bruin TL, 1940, P K NED AKAD WETENSC, V43, P581
- [3] de Bruin TL, 1938, P K NED AKAD WETENSC, V41, P956
- [4] EXNER F, 1911, SPEKTREN ELEMENTE NO, V2
- [5] EXNER F, 1912, SPEKTREN ELEMENTE NO, V3
- [6] An improved description of the thorium spectrum [J]. ASTROPHYSICAL JOURNAL, 1938, 87 (02) : 176 - 197
- [7] LIER JN, 1939, THESIS AMSTERDAM