On a certain method of observing differential refraction
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1934 ◽
Vol 95
(2)
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pp. 132-138
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1897 ◽
Vol 57
(3)
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pp. 133-141
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2004 ◽
Vol 349
(3)
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pp. 1019-1026
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1982 ◽
Vol 94
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pp. 715
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