1. Investigation of oogenesis in hydra. Communication I. Ultrastructure of interstitial cells at early stages of their transformation into oocytes;Aizenshtadt;Ontogenez,1974
2. Study of oogenesis in hydra. Communication III. Growth and fusion of oocytes;Aizenshtadt;Ontogenez,1978
3. Oogenesis studies in hydra IV. Phagocytotic activity of oocytes;Aizenshtadt;Ontogenez,1980
4. Investigation of oogenesis in hydra. Communication II. Cytophotometric determination of DNA content in nuclei of germ and somatic cells;Aizenshtadt;Ontogenez,1974
5. Cell death in spermatogenesis;Allan,1987