H. Schoenmakers

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In vitro biosynthesis of steroids from androstenedione by the ovaries and pyloric caeca of the starfish Asterias rubens.

P. Voogt, H. Schoenmakers, 1981, General and comparative endocrinology.

In Vitro biosynthesis of steroids from cholesterol by the ovaries and pyloric caeca of the starfish Asterias rubens

H. Schoenmakers, 1979 .

Steroid synthesizing capacity of the dorsal body of Helix pomatia L. (Gastropoda)—an in vitro study

P. Voogt, A. Nolte, H. Schoenmakers, 1979 .

Anatomy of the ovaries of the starfish Asterias rubens (Echinodermata)

P. V. Oordt, J. Peute, H. Schoenmakers, 1981, Cell and Tissue Research.

Ultrastructural evidence for the existence of steroid synthesizing cells in the ovary of the starfish, Asterias rubens (Echinodermata)

J. Peute, H. Schoenmakers, P. Colenbrander, 1977, Cell and Tissue Research.

Effects of Oestradiol‐17 β on the Ovaries of the Starfish Asterias rubens

S. Dieleman, C. G. van Bohemen, H. Schoenmakers, 1981, Development, growth & differentiation.

Some aspects of the sterol metabolism in the echinoderm Asterias rubens.

P. Voogt, H. Schoenmakers, 1973, Comparative biochemistry and physiology. B, Comparative biochemistry.

The variation of 3β-hydroxysteroid dehydrogenase activity of the ovaries and pyloric caeca of the starfishAsterias rubens during the annual reproductive cycle

H. Schoenmakers, 1980, Journal of Comparative Physiology.

A biochemical and quantitative electron microscope study on steroidogenesis in ovotestis and digestive gland of the pulmonate snail Lymnaea stagnalis.

L. Schot, M. de Jong-Brink, H. Schoenmakers, 1981, General and comparative endocrinology.

Progesterone and estrone levels in the ovaries, pyloric ceca, and perivisceral fluid during the annual reproductive cycle of starfish, Asterias rubens.

S. Dieleman, H. Schoenmakers, 1981, General and comparative endocrinology.

Radioimmunoassays to determine the presence of progesterone and estrone in the starfish Asterias rubens.

S. Dieleman, H. Schoenmakers, 1979, General and comparative endocrinology.

On the division of the reproductive cycle of female starfish,Asterias rubens, into stages

P. Voogt, H. Schoenmakers, 1986 .

BIOMETRICAL AND HISTOLOGICAL ASPECTS OF THE REPRODUCTIVE CYCLE OF THE OVARIES OF ASTERIAS RUBENS (ECHINODERMATA)

P. Voogt, M. Goedhart, H. Schoenmakers, 1984 .

Old men and new State structures in Guinea-Bissau

H. Schoenmakers, 1987 .