1. Bassel AR (1985) Asymmetric cell division and differentiation; fern spore germination as a model. II. Ultrastructural studies. Proc Roy Soc Edinburgh 86 b: 227?230
2. Bünning E (1952) Morphogenesis in plants. Survey Biol Prog 2: 105?140
3. Campbell AK (1983) Intracellular calcium. Its universal role as regulator. Wiley, New York
4. Caswell AH, Hutchinson JD (1971) Selectivity of cation chelation to tetracycline: evidence for special conformation of calcium chelate. Biochem Biophys Res Comm 43, 625?630
5. Cheung WY (1982) Calcium and cell function, vol III. Academic Press, New York