Publication
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Über die Ascomycetenfamilie der Leptopeltaceae Article
Acta botanica neerlandica, 13(2), 182-188.January 1964
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On the Anatomy of the Woody Stem of the Twisted Hazel, Corylus avellana L. ‘Contorta’ Article
Acta botanica neerlandica, 13(2), 189-208.January 1964
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Palaeobotany of the Mesophytic I; Palynology of Lower Triassic Rock Salt, Hengelo, The Netherlands Article
Acta botanica neerlandica, 13(2), 209-236.January 1964
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A Pollenanalytical Investigation of a boring made near a River Dune in South-Holland Article
Acta botanica neerlandica, 13(2), 237-245.January 1964
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Notes on Myxomycetes VIII. A new species of Didymium from the Netherlands Article
Acta botanica neerlandica, 13(2), 246-249.January 1964
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Hölzer der Niederrheinischen Braunkohlenformation. I. Hölzer der braunkohlengrube ”Anna” zu Haanrade (Niederländisch Limburg) Article
Acta botanica neerlandica, 13(2), 250-301.January 1964
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Endogenous Growth Factors and Flower Formation in Wedgwood Iris Bulbs Article
Acta botanica neerlandica, 13(2), 302-321.January 1964
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Jaag weidelijk met camera of geweer Article
Het Vogeljaar, 12(1), 220-222.January 1964