How I discovered phase contrast (Q28211531)
scientific article (publication date: 11 March 1955)
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(P50) (Q188293)
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(P1932) F ZERNIKE

(P304) 345-9

(P407) (Q1860)

(P433) 3141

(P478) 121

(P577) Friday, March 11, 1955

(P1433) (Q192864)

(P1476) "How I discovered phase contrast" (language: en)

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