http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the symposium, Marburg, September 5, 1977
ed. by Fritz Albert Popp [and others], with assistance of Helmut Breithaupt [and others] ; and a foreword from Janos Ladik.
Includes bibliographical references and index.