Carlsen, T. (1950). On the Christiansen Filter and a modification thereof. Akad.for the tekniske videnskaber;Gad in Komm.
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Tohutoru Kātū Chicago (17th ed.)
Carlsen, Tage. On the Christiansen Filter and a Modification Thereof. København: Akad.for the tekniske videnskaber;Gad in Komm, 1950.
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Tohutoro MLA (9th ed.)
Carlsen, Tage. On the Christiansen Filter and a Modification Thereof. Akad.for the tekniske videnskaber;Gad in Komm, 1950.
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