Publication
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Notes on the genus Mormolyce Hagenbach (Coleoptera, Carabidae) Article
Bijdragen tot de dierkunde, 38(1), 59-68.January 1968
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Fig wasps from Israeli ficus Sycomorus and related East African species (Hymenoptera, Chalcidoidea) 2. Agaonidae (concluded) and Sycophagini Article
Zoologische Mededelingen, 42(28), 307-320.January 1968
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Cytotaxonomic studies in the genus Mentha in the Netherlands Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 279(1), 184-188.January 1968
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Contributions to the distribution of the Clausiliidae (Gastropoda, Pulmonata) in the Karst regions of Romania Article
Zoologische Mededelingen, 43(4), 41-55.January 1968
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Molluscan biocoenoses and thanatocoenoses in the Ria de Arosa, Galicia, Spain Article
Zoologische Verhandelingen, 95(1), 1-121.January 1968
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Over het onderscheid en de oecologie van Lemna minor en Lemna gibba Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 4(1), 5-12.January 1968
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On the radulae and spines of some Polyplacophora and Archaeogastropoda from Curaçao Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 25(1), 73-82.January 1968
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A review of old world species of Thyreus Panzer (=Crocisa Jurine) (Hym., Apoidea, Anthophoridae) Part 4. Palearctic species Article
Zoologische Verhandelingen, 98(1), 1-139.January 1968