Ortmann, P. (1884). Experimentelle Untersuchungen über centrale Keratitis.
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Tohutoru Kātū Chicago (17th ed.)
Ortmann, Paul. Experimentelle Untersuchungen über Centrale Keratitis. Königsberg, 1884.
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Tohutoro MLA (9th ed.)
Ortmann, Paul. Experimentelle Untersuchungen über Centrale Keratitis. 1884.
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