共 24 条
- [1] STRUTT, 1871, PHIL MAG, V41, P107
- [2] 1912, HARVARD ANN, V59, P180
- [3] 1930, B HARVARD OBSERVATOR, V876, P32
- [4] 1921, ASTRONOMISCHE NACHRI
- [5] 1931, ASTROPHYSICAL J, V74, P311
- [6] 1923, POPULAR ASTRONOMY, V31, P77
- [7] 1922, ANN STERREWACHT LEID, V14
- [8] 1930, OLE ROMER OBSERVATOR, V5
- [9] 1928, WRATTEN LIGHT FILTER
- [10] 1913, B BUREAUA STANDARDS, V9, P319