http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
On the recording and presentation of phenological phenomena in plant communities =
English translation of Zur Aufnahme und Darstellung phanologischer Erscheinungen in Pflanzengesellschaften
by Helmut Dierschke ; translated by Runhild E. Wessell and Stephen S. Talbott.
German original first published in International Symposium for Vegetation Science, 1970, Basic problems and methods in phytosociology : The Hague : Junk, 1972.