1. Bennett, M.D.: The cell in sporogeneisis and spore development. In: Cell division in higher plants (M.M. Yeoman, ed.), pp. 161?198. London-New York-San Francisco: Academic Press 1976
2. Charzy?ska, M., Pannenko, I.: Inhibition of cytokinesis in the microspore of Tradescantia bracteata Small, by caffeine. Acta Soc. Bot. Poloniae 45, 469?476 (1976)
3. Giménez-Martín, G., Gonzalez-Fernandez, A., López-Saez, J.F.: Bimitosis. Phyton 21, 77?84 (1964)
4. Gonzalez-Fernandez, A.: Formación y desarrollo de células binucleadas: bimitosis. Genética Ibérica 19, 1?98 (1967)
5. Kihlman, B.A.: Caffeine and chromosomes. Amsterdam-New York-Oxford: Elsevier Scientific Publishing Company 1977