1. Ahmim, M. and Vieth, J. (1986) Production de plantes haplöides de Gerbera jamesonii par culture in vitro d’ovules, Can. J. Bot. 64, 2355–2357.
2. Alatorceva, T.A. and Tyrnov, V.S. (1994) Comparison of development of unpollinated ovaries of apo-and amphimictic lines of corn in vitro. Apomixis u rastenii. Sostoyanie problemy i Perspektivy. Proc. Intl. Symp, Saratov, pp. 8–9.
3. Asselin de Beauville, M. (1980) Obtention d’haplöides in vitro à partir d’ovaires non fécondés de riz, (Oryza sativa L.), C.R. Acad. Sci. Paris 290D, 489–492.
4. Battaglia, E. (1963) Apomixis, in P. Maheshwari (ed.), Recent Advances in the Embryology of Angiosperms, Intl. Soc. Plant Morphol., Univ. Delhi, Delhi, pp. 221–264.
5. Blakeslee, A.F., Belling, J., Farnham, M. E. and Bergner, A. D. (1922) A haploid mutant in the Jimson weed Datura stramonium, Science 55, 646–647.