1. Biggelaar, J.A.M. van den: Timing of the phases of the cell cycle with tritiated thymidine and Feulgen cytophotometry during the period of synchronous division inLymnaea. J. Embryol. exp. Morph.26, 351?366 (1971a)
2. Biggelaar, J.A.M. van den: Timing of the phases of the cell cycle during the period of asynchronous division up to the 49-cell stage inLymnaea. J. Embryol. exp. Morph.26, 367?391 (1971b)
3. Boon-Niermeijer, E.K.: The effect of puromycin on the progression of the cleavage cycle ofLymnaea stagnalis. Proc. kon. ned. Akad. Wet. C77, 16?28 (1974)
4. Boon-Niermeijer, E.K.: The effect of puromycin on the early cleavage cycles and morphogenesis of the pond snailLymnaea stagnalis. Wilhelm Roux' Archiv177, 29?40 (1975)
5. Boon-Niermeijer, E.K.: Head malformations arising after puromycin treatment inLymnaea stagnalis. Proc. kon. ned. Akad. Wet. C,79, 34?41 (1976)