Publication
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A new species of the genus Rivulus from Ecuador with additional records of Rivulus from the Upper Amazon and Ucayali rivers Article
Beaufortia, 9(103), 145-150.January 1962
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Ostroumovia inkermanica in the Netherlands Article
Beaufortia, 9(100), 117-120.January 1962
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Pteridophyta Article
Flora of the Netherlands Antilles, 1(1), 1-84.January 1962
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Geological Map of the Paleozoic of the Central Pyrenees Article
Leidse Geologische Mededelingen, 27(1), 191-236.January 1962
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A Monograph on Spanish Palaeozoic Crinoidea Article
Leidse Geologische Mededelingen, 27(1), 1-189.January 1962
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Tenebrionid Beetles of the West Indies Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 13(1), 21-48.January 1962
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Dragon Flies of the Genus Zonophora with special reference to its Surinam representatives Article
Studies on the Fauna of Suriname and other Guyanas, 5(1), 60-69.January 1962
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Neue Scarabaeiden aus Suriname Article
Studies on the Fauna of Suriname and other Guyanas, 5(1), 42-54.January 1962