Publication
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A new species of the Rodent Baiomys from Aruba and Curaçao Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 10(1), 33-40.January 1960
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Turbellaria from Curaçao Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 10(1), 41-51.January 1960
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Tardigrada from Curaçao, Bonaire and Los Testigos Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 10(1), 52-57.January 1960
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Progress in Malaysian botany Article
Flora Malesiana Bulletin, 15(1), 710-712.January 1960
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The Heteroptera of the Netherlands Antilles – V Tingidae (Lace Bugs) Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 11(1), 67-97.January 1960
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A list of type specimens of fishes in the Zoological Museum, University of Amsterdam. 1. Order Mugiliformes Article
Beaufortia, 7(87), 211-217.January 1960
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Zoological Results of a Collecting Journey to Yugoslavia, 1954 6. Die Pisidien des Ochridsees, Mazedonien, nebst Bemerkungen über die Verbreitung der Pisidien in der Balkanhalbinsel und den Donauländern Article
Beaufortia, 7(88), 219-231.January 1960
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De ijstijden Guide to 1960 exhibition Article
Beaufortia, 8(90), 93-107.January 1960