共 20 条
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- [2] CHANDRASEKHAR, 1933, M N, V93, P453
- [3] *DOM AP OBS, 1938, PUB DOM AP OBS, V7
- [5] STRUVE, 1934, OBSERVATORY, V57, P265
- [6] *WASHB OBS, 1931, WASH OBS PUB, V15, P209
- [7] 1908, P ACAD AMSTERDAM, V10, P459
- [8] 1935, M N, V95, P644
- [9] 1917, SITZUNGSBER PREUSS A, P222
- [10] 1920, GESCHICHTE LIT VERAN, V2, P156