Amy Hinsley, Hugo J de Boer, Michael F Fay, Stephan W Gale, Lauren M Gardiner, Rajasinghe S Gunasekara, Pankaj Kumar, Susanne Masters, Destario Metusala, David L Roberts, Sarina Veldman, Shan Wong, Jacob Phelps, A review of the trade in orchids and its implications for conservation, Botanical Journal of the Linnean Society, Volume 186, Issue 4, April 2018, Pages Pages 435–455, https://doi.org/10.1093/botlinnean/box083
Zeiger, E.; Assmann, S. M.; Meidner, H. (1983). "Photobiology of Paphiopedilum stomata: Opening under blue light but not red". Photochemistry and Photobiology. 38 (5): 627. doi:10.1111/j.1751-1097.1983.tb03394.x. S2CID97955450.
Amy Hinsley, Hugo J de Boer, Michael F Fay, Stephan W Gale, Lauren M Gardiner, Rajasinghe S Gunasekara, Pankaj Kumar, Susanne Masters, Destario Metusala, David L Roberts, Sarina Veldman, Shan Wong, Jacob Phelps, A review of the trade in orchids and its implications for conservation, Botanical Journal of the Linnean Society, Volume 186, Issue 4, April 2018, Pages Pages 435–455, https://doi.org/10.1093/botlinnean/box083
Zeiger, E.; Assmann, S. M.; Meidner, H. (1983). "Photobiology of Paphiopedilum stomata: Opening under blue light but not red". Photochemistry and Photobiology. 38 (5): 627. doi:10.1111/j.1751-1097.1983.tb03394.x. S2CID97955450.