1. 201
  2. Hungarian: The Hungarian language in education in Romania

    Visser, M. (ed.) & Papp Z., A., 20 Sep 0201, Leeuwarden/Ljouwert: Mercator European Research Centre on Multilingualism and Language Learning. 64 p. (Regional dossiers series)

    Research output: Book/ReportReportProfessional

  3. 1950
  4. De april-mei stakingen van 1943

    Bouman, P. J., 1950, Martinus Nijhoff Publishers. 483 p.

    Research output: Book/ReportBookProfessional

  5. 1951
  6. Hoe trekken de Nederlandse spreeuwen?

    Perdeck, A. C., 1951, In : De Levende Natuur. 54, p. 221-227

    Research output: Contribution to journal/periodicalArticlePopularizing

  7. 1954
  8. Territory and the regulation of density in tit mice

    Kluijver, H. N. & Tinbergen, L., 1954, In : Netherlands Journal of Zoology. 10, 3, p. 265-289

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  9. 1955
  10. In memoriam prof. dr. Lukas Tinbergen

    Kluijver, H. N., 1955, In : Vakblad voor Biologen. 35, p. 169-172

    Research output: Contribution to journal/periodicalArticlePopularizing

  11. 1956
  12. Enkele oecologische aspecten van Pieris brassicae

    Van Balen, J. H., 1956, Heteren: [s.n.]. 19 p.

    Research output: Book/ReportReportPopularizing

  13. 1957
  14. Roosting habits, sexual dominance and survival in the great tit

    Kluijver, H. N., 1957, In : Cold Spring Harbor Symposia on Quantitative Biology. 22, p. 281-285

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  15. 1958
  16. Herfsttrekwaarnemingen bij Cap Griz - Nez

    Nijhoff, P., 1958, In : Ardea. 46, p. 62-67

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  17. The isolating value of specific song patterns in two sibling species of grasshoppers (Chorthippus brunneus Thunb. and C. biguttulus L.)

    Perdeck, A. C., 1958, In : Behaviour. 12, 1-2, p. 1-75

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  18. Two types of orientation in migrating starlings, Sturnus vulgaris L., and Chaffinches, Fringilla coelebs L., as revealed by displacement experiments

    Perdeck, A. C., 1958, In : Ardea. 46, p. 1-37

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  19. Waarnemingen over spontane trekactiviteit van spreeuwen in een zgn. Kramer-kooi

    Nijhoff, P., 1958, Heteren: [s.n.].

    Research output: Book/ReportReportPopularizing

  20. 1959
  21. Een broedkolonie van de kwak (Nycticorax nycticorax L.) in de omgeving van Wageningen

    Kluijver, H. N. & Hoogers, B. J., 1959, In : Limosa. 32, p. 8-13

    Research output: Contribution to journal/periodicalArticlePopularizing

  22. Heaths and inland dunes of the Veluwe

    Stoutjesdijk, P., 1959, In : Wentia. 2, p. 1-96

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  23. Migration and distribution of the wegeon, Anas penelope L., in Europe, based on ringing results

    Donker, J. K., 1959, In : Ardea. 47, p. 1-27

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  24. 1960
  25. Comments on the Venice-system for the classification of brackish waters

    Den Hartog, C., 1960, In : Internationale Revue der Gesamten Hydrobiologie. 45, 4, p. 481-485

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  26. Het Hydrobiologisch Instituut te Nieuwersluis

    Nicolai, M. F. E., 1960, In : Vakblad voor Biologen. 40, p. 125-131

    Research output: Contribution to journal/periodicalArticlePopularizing

  27. Observations on the reproductive behaviour of the great skua or bonxie, Stercorarius skua skua (Brünn) in Shetland

    Perdeck, A. C., 1960, In : Ardea. 48, p. 111-136

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  28. Onderzoek naar het eileggedrag van de rietvlieg Lipara lucens Mg.

    Drijver-de Haas, J. S., 1960, Heteren: [s.n.]. 34 p.

    Research output: Book/ReportReportPopularizing

  29. Studies on the cycle of elements in freshwater

    Golterman, H. L., 1960, In : Acta Botanica Neerlandica. 9, p. 1-58

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  30. Verspreiding van het slakje Pseudamnicola confusa in het Deltagebied van Rijn en Maas (Distribution of Pseudamnicola confusa in the region of Rhine and Meuse)

    Den Hartog, C., 1960, In : Basteria. 24, 4/5, p. 66-74

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  31. 1961
  32. A sensitive, rapid determination of inorganic phosphate in presence of labile phosphate esters

    Golterman, H. L. & Würtz, I. M., 1961, In : Analytica Chimica Acta. 25, 1, p. 295-297

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  33. Das Arbeitsfeld des Hydrobiologischen Institutes, Abteilung Delta-Untersuchungen in den Niederlanden

    Vaas, K. F., 1961, In : Internationale Revue der Gesamten Hydrobiologie. 46, 2, p. 292-295

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  34. De taak en het arbeidsveld van de Afdeling Deltaonderzoek van het Hydrobiologisch Instituut te Yerseke

    Vaas, K. F., 1961, In : Vakblad voor Biologen. 41, p. 6-13

    Research output: Contribution to journal/periodicalArticlePopularizing

  35. Die faunistische Gliederung im sudwest-niederlandischen Deltagebiet

    Den Hartog, C., 1961, In : Internationale Revue der Gesamten Hydrobiologie. 46, 3, p. 407-418

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  36. Een val voor het levend vangen van mollen

    Haeck, J., 1961, In : Lutra. 2, p. 24-25

    Research output: Contribution to journal/periodicalArticlePopularizing

  37. Enkele aspecten van vegetatie en bodem der duinen van Goeree, in het bijzonder de contactgordels tuusen zout en zoet milieu

    Westhoff, G., Van Leeuwen, C. G. & Adriani, M. J., 1961, In : Jaarboek / Wetenschappelijk Genootschap voor Goeree en Overflakkee. '61, p. 47-91

    Research output: Contribution to journal/periodicalArticlePopularizing

  38. Food Consumption in Relation to Habitat in Breeding Chickadees

    Kluijver, H. N., 1961, In : The Auk. 78, 4, p. 532-550

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  39. Het evenwicht in de natuur

    Kluijver, H. N., 1961, Akademiedagen XIII. Amsterdam: Koninklijke Nederlandse Akademie van Wetenschappen (KNAW), p. 37-53

    Research output: Chapter in book/volumeChapterPopularizing

  40. Het Instituut voor Oecologisch Onderzoek

    Kluijver, H. N., 1961, In : Vakblad voor Biologen. 41, p. 233-241

    Research output: Contribution to journal/periodicalArticlePopularizing

  41. Micrometeorological measurements in vegetations of various structures

    Stoutjesdijk, P., 1961, In : Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen. Series C, Biological and medical sciences. 64, p. 171-207

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  42. Observations on the oviposition behaviour of Polemon liparae Girr. (Hym., Braconidae)

    Mook, J. H., 1961, In : Netherlands Journal of Zoology. 14, p. 423-430

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  43. Verlies en winst in een halve eeuw vogelbescherming

    Kluijver, H. N., 1961, In : Natura. 58, p. 165-173

    Research output: Contribution to journal/periodicalArticlePopularizing

  44. 1962
  45. Bewerking ringgevens wintertaling

    Wolff, W. J., 1962, Heteren: [s.n.].

    Research output: Book/ReportReportPopularizing

  46. Conspectus of the phanerogamic salt plant communities in the Netherlands

    Beeftink, W. G., 1962, In : Biologisch Jaarboek. 30, p. 325-362

    Research output: Contribution to journal/periodicalArticlePopularizing

  47. Dispersal and activity of the mole

    Haeck, J., 1962, In : Netherlands Journal of Zoology. 14, p. 607-608

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  48. Dispersal and distribution of Lipara luscens Mg. (Diptera, Ghloropidae) in eastern Flevoland

    Mook, J. H., 1962, In : Netherlands Journal of Zoology. 14, p. 606-607

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  49. Een onderzoek naar de verspreiding van spreeuwen in het winterkwartier gebasseerd op ringgegevens

    Spaans, A. L., 1962, Heteren: [s.n.].

    Research output: Book/ReportReportPopularizing

  50. Fycologische notities, 1. Sphacelaria plumigera in Zeeland. (Phycological notes, 1. Sphacelaria plumigera in the province of Zeeland)

    Den Hartog, C., 1962, In : Gorteria. 1, p. 81-84

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  51. Milax gagates en Limax valentianus, twee zeldzame landslakken in Yerseke. (Milax gagates and Limax valentianus, two rare slugs at Yerseke)

    Den Hartog, C. & Sandee, A. J. J., 1962, In : Basteria. 26, 5/6, p. 83-85

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  52. The distribution of the land planarian Rhynchodemus terrestris in the Netherlands

    Den Hartog, C., 1962, In : Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen. Series C, Biological and medical sciences. 65, 4, p. 369-379

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  53. The life cycle of the water snail Aplexa hypnorum

    Den Hartog, C., 1962, In : Basteria. 26, p. 61-72

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  54. Vondsten van Sigara selecta Fieb. (Hemiptera Heteroptera) in Nederland (Sigara selecta Fieb. (Hemiptera Heteroptera in the Netherlands))

    Duffels, J. P., 1962, In : Entomologische Berichten. 22, 3, p. 59-59

    Research output: Contribution to journal/periodicalArticlePopularizing

  55. 1963
  56. Annual report of the Delta Division of the Hydrobiological Institute of the Royal Netherlands' Academy of Sciences for the years 1960 and 1961

    Vaas, K. F., 1963, In : Netherlands Journal of Sea Research. 2, p. 68-76

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  57. Bewerking ringgevens wintertaling

    Meijering, M., 1963, Heteren: [s.n.].

    Research output: Book/ReportReportPopularizing

  58. De globale vegetatiekartering van de duinen van Voorne

    Oldenburger, F. H. F., 1963, Utrecht: Instituut voor Systematische Plantkunde. 23 p. (Studentenverslag)

    Research output: Book/ReportReportPopularizing

  59. Does navigation without visual cues exist in robins?

    Perdeck, A. C., 1963, In : Ardea. 51, p. 91-104

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  60. Enige waterplantengemeenschappen in Zeeland. (Some aquatic plant communities in the province of Zeeland)

    Den Hartog, C., 1963, In : Gorteria. 1, p. 155-164

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

  61. Het werk van het Instituut voor Oecologisch Onderzoek : onderzoek in de IJsselmeerpolders

    Mook, J. H., 1963, In : Flevoberichten. 36, p. 1-11

    Research output: Contribution to journal/periodicalArticlePopularizing

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