1. Aitken-Christie J., Kozai T., Takayama S. (1995) Automation in plant tissue culture — general introduction and overview. In: Aitken-Christie J., Kozai T., Smith M. A. L. (eds.) Automation and environmental control in plant tissue cultures. Kluwer Academic Publishers, Dordrecht, pp. 1–18.
2. Bajaj Y. P. S. (1995) Preface. In: Bajaj Y. P. S. (ed.) Biotechnology in Agriculture and Forestry 30 — Somatic embryogenesis and synthetic seed I. Springer, Berlin.
3. Bouman H., Kuijpers A. M., Hol. T., Schoo W. (2001) Differences in growth and regeneration of suspension cultures derived from various callus lines of Cyclamen persicum cv. `Purple Flamed’. In: Schwenkel H. G. (ed.) Reproduction of Cyclamen persicum Mill. through somatic embryogenesis using suspension culture systems. COST Action 822, European Commission, Brussels, EUR 19697, pp. 46–54.
4. Brandau K., Preil W., Lieberei R. (1997) Differences in compounds released by embryogenic and non-embryogenic suspension cultures of Euphorbia pulcherrima. Biologia Plantarum 39: 113–124.
5. Brown D. C. W., Finstad K. I., Watson E. M. (1995) Somatic embryogenesis in herbaceous dicots. In: Thorpe T. A. (ed.) In vitro embryogenesis in plants. Kluwer Academic Publishers, Dordrecht, pp. 345–416.