1. Anagnostakis SL (1974) Haploid plants from anthers of tobacco enhancement with charcoal. Planta 115: 281–283
2. Anon (1976) A sharp increase of the frequency of pollen plant induction in wheat with potato medium. Acta Genet Sin 3: 25–31
3. Bajaj YPS (1977) In vitro induction of haploids in wheat (Triticum aestivum L.). Crop Improv 4: 54–64
4. Bajaj YPS (1983) In vitro production of haploids. In: Evans DA, Sharp WR, Ammirato PV, Yamada Y (eds) Handbook of plant cell culture, vol I. Techniques for propagation and breeding. MacMillan Press, New York, pp 228–287
5. Bajaj YPS (ed) (1990) Biotechnology in agriculture and forestry, vol 12: Haploids in crop improvement I. Springer, Berlin Heidelberg New York Tokyo