Future changes in the distribution of two non-indigenous orchids and their acquired enemy in Puerto Rico.

Foster, E. A., Ackerman, J. D., (2021). Biological Invasions 23(11), 3545-3563. Springer, Amsterdam, Netherlands. English language

Orchids gone wild.

Ackerman, J., (2012). Orchids 81(2), 88-93. American Orchid Society, Inc., Delray Beach, USA. English language

Ex situ orchid conservation - a case study from the Singapore Botanic Gardens.

Yam, T. W., Tay, F., Ang, P., Chua, J., (2010). Acta Horticulturae(No.878), 21-28. International Society for Horticultural Science (ISHS), Leuven, Belgium. English language

Plant resources of South-East Asia No. 12(2): medicinal and poisonous plants 2.

Valkenburg, J. L. C. H. van, Bunyapraphatsara, N., (2001). Plant resources of South-East Asia No. 12(2): medicinal and poisonous plants 2, 782 pp. Backhuys Publishers, Leiden, Netherlands. English language