1. Arditti J, Ernst R (1992) Micropropagation of orchids. John Wiley Sons Inc, Hoboken, pp 434–466
2. Arditti J, Ernst R (1993) Several early scientific investigators and their research: A contribution towards the history of orchids in the United States of America. In: Rittershausen W (ed) 100 years of orchids, the Orchid review centenary year book 1893–1993. Bradfield Books, Creat Bardfliled, Braintree, Essex CM7 4RZ, UK, pp 125–142
3. Arditti J, Mosich SK, Ball EA (1973) Dendrobium node cultures: a new means of clonal propagation. Aust Orchid Rev 38:175–179
4. Averyanov L, Cribb P, Loc PK, Hiep NT (2003) Slipper orchids of Vietnam. Compass Press Limited, Kew
5. Barker AV, Arker K, Corey A (1987) Ammonium-induced ethylene evolution by horticultural crops. Hort Sci 22:381