1. 1999 XVI International Botanical Congress - 1999 St. Louis, Missouri http://www.cbd.int/doc/submissions/plt-conserv-bot-cong-en.pdf
2. The convention on biological diversity's 2010 target;Balmford;Science,2005
3. BGCI, Botanic Gardens Conservation International 2000 The Gran Canaria Declaration, calling for a global program for plant conservation http://www.cbd.int/doc/meetings/cop/cop-05/information/cop-05-inf-32-en.pdf
4. BGCI, Botanic Gardens International 2010 BGCI Plant Search http://www.bgci.org/plant_search.php
5. Bridgewater P