1. Ammirato, P.V., 1983. Embryogenesis. In: Evans, D.A., Sharp, W.R., Ammirato, P.V., Yamada, Y. (Eds.), Handbook of Plant Cell Culture, Vol. I. MacMillan, New York, pp. 82–123.
2. Ammirato, P.V., 1987. Organizational events during somatic embryogenesis. In: Green, C.E., Somers, D.A., Hackett, W.P., Biesboer, D.D. (Eds.), Plant Tissue and Cell Culture, Plant Biology, Vol. 3. Alan R. Liss., New York, pp. 57–81.
3. Bailey, L.H., 1950. In: Bailey, L.H. (Ed.). The Standard Cyclopedia of Horticulture. MacMillan, New York, pp. 2586–2588.
4. In vitro somatic embryogenesis in Typhonium trilobatum Schott;Das;Plant Growth Regul.,1999
5. Shoot regeneration from leaf tissues of Phlox paniculata L;Declerck;J. Plant Physiol.,1995