http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The development of the digestive glands and enzymes in the pitchers of three Nepenthes species : N. Alata, N. Tobaica, and N. Ventricosa (Nepenthaceae)
Andrew H. Thornhill, Ian S. Harper, Neil D. Hallam.