1. Alexander, M.P., Differential staining of aborted and non-aborted pollen, Stain Technol., 1969, vol. 44, no. 3, pp. 117–122.
2. Baillie, A.M.R., Epp, D.J., Hutcheson, D., and Keller, W.A., In vitro culture of isolated microspores and regeneration of plants in Brassica campestris, Plant Cell Rep., 1992, vol. 11, pp. 234–237.
3. Brosa, C., Biological effects of brassinosteroids, Crit. Rev. Biochem. Mol. Biol., 1999, vol. 34, pp. 339–358.
4. Burnett, L., Yarrow, S., and Huang, B., Embryogenesis and plant regeneration from isolated microspores of Brassica rapa L. ssp. oleifera, Plant Cell Rep., 1992, vol. 11, pp. 215–218.
5. Cao, M.Q., Li, Y., Liu, F., and Dore, C., Embryogenesis and plant regeneration of pakchoi (Brassica rapa L. ssp. chinensis) via in vitro isolated microspore culture, Plant Cell Rep., 1994, vol. 13, pp. 447–450.