Retinoic acid causes an anteroposterior transformation in the developing central nervous system von Durston, A. J., Timmermans, J. P. M., Hage, W. J., Hendriks, H. F. J., de Vries, N. J., Heideveld, M., Nieuwkoop, P. D.

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Short historical survey of pattern formation in the endo-mesoderm and the neural anlage in the vertebrates: the role of vertical and planar inductive actions von Nieuwkoop, P D

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Inductive interactions in early amphibian development and their general nature von NIEUWKOOP, P. D

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Vertical versus planar induction in amphibian early development von Nieuwkoop, P. D., Koster, K.

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The Role of Competence in the Cranio‐Caudal Segregation of the Central Nervous System von Nieuwkoop, Pieter D., Albers, Brigitte

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The neural induction process; its morphogenetic aspects von Nieuwkoop, P D

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What are the key advantages and disadvantages of urodele species compared to anurans as a model system for experimental analysis of early development? von Nieuwkoop, P D

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The Successive Steps in the Pattern Formation of the Amphibian Central Nervous System von Nieuwkoop, Pieter D.

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Pattern formation in artificially activated ectoderm ( Rana pipiens and Ambystoma punctatum) von Nieuwkoop, P.D.

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The induction of the primordial germ cells in the urodeles von Sutasurja, Lien A., Nieuwkoop, P. D.

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The formation of the mesoderm in urodelean amphibians: I. Induction by the endoderm von Nieuwkoop, P. D.

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The influence of lithium on the competence of the ectoderm in Ambystoma mexicanum von GEBHARDT, D O, NIEUWKOOP, P D

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Independent and dependent development in the formation of the central nervous system in amphibians; a review of experimental analysis von NIEUWKOOP, P D

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Investigations on the regional determination of the central nervous system von NIEUWKOOP, P D

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The Formation of the Mesoderm in Urodelean Amphibians: II. The origin of the dorso-ventral polarity of the mesoderm von Nieuwkoop, P. D.

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The present state of the problem of the «Keimbahn» in the vertebrates von Nieuwkoop, P. D.

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Some further data concerning the determination of the mesonephros von Nieuwkoop, P. D.

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A diffusion model for mesoderm induction in amphibian embryos von Weyer, C J, Nieuwkoop, P D, Lindenmayer, A

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Embryological evidence for a possible polyphyletic origin of the recent amphibians von Nieuwkoop, P D, Sutasurya, L A

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The formation of the mesoderm in urodelean amphibians: III. The vegetalizing action of the Li ion von Nieuwkoop, P. D.

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