Publication
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Some cytological observations in the Loganiaceae III Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 264(1), 490-491.January 1966
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Notes on land slugs : 11. Arionidae, Milacidae and Limacidae from South Africa (Mollusca, Gastropoda Pulmonata) Article
Zoologische Mededelingen, 41(20), 269-298.January 1966
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Seismic reflection measurements with a pneumatic sound source in the Ría de Arosa (NW Spain) Article
Leidse Geologische Mededelingen, 37(1), 169-176.January 1966
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Phytoseiidae of British Guyana with keys to species Article
Studies on the Fauna of Suriname and other Guyanas, 8(1), 81-102.January 1966
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A new Frog of the Genus Centrolenella from Suriname Article
Studies on the Fauna of Suriname and other Guyanas, 8(1), 77-80.January 1966
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Loasaceae Article
Flora of the Netherlands Antilles, 2(1), 67-68.January 1966
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New species of Macrochiron (Copepoda, Cyclopoida) associated with hydroids in Madagascar Article
Beaufortia, 14(165), 5-28.January 1966
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Catalogue of the type specimens of amphibians and reptiles in the Zoological Museum, Amsterdam Article
Beaufortia, 13(158), 117-144.January 1966