http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Proceedings of the 2nd International Conference, Emil-Warburg-Symposium, Bayreuth-Bischofsgrün, Fed. Rep. of Germany, June 3-7, 1985
edited by Alfred Laubereau, Manfred Stockburger.