Publication
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Studies on insect muscles Article
Bijdragen tot de dierkunde, 29(1), 5-40.January 1959
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Field studies on the surface fauna of forests Article
Bijdragen tot de dierkunde, 29(1), 79-103.January 1959
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Progress in Malaysian botany Article
Flora Malesiana Bulletin, 14(1), 627-629.January 1959
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Revision of the Indo-Pacific species of the genus Distichopora Article
Bijdragen tot de dierkunde, 29(1), 121-171.January 1959
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Parnassiana nova : XXVI. Kritische Revision der Gattung Kailasius Article
Zoologische Mededelingen, 36(15), 249-266.January 1959
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Parnassiana nova : XXIV. Kritische Revision der Gattung Tadumia Article
Zoologische Mededelingen, 36(10), 165-192.January 1959
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The Casavegas Section and its fusulinid Fauna Article
Leidse Geologische Mededelingen, 24(2), 705-720.January 1959
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Erstaunliche Lebenszähigkeit einer Riesenschlange Article
Bijdragen tot de dierkunde, 29(1), 71-72.January 1959