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| 005 | 20220912153029.0 | ||
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| 082 | _aB9:57, J0 | ||
| 100 | _aKopal Zdenek | ||
| 245 | 0 | _aComputation of elements of eclipsing binary systems | |
| 260 | _c1950 | ||
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| 490 | _aHarvard observatory monograph; 8 | ||
| 650 | _aAstrophysics | ||
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