http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
lectures delivered at the winter school "Les Houches", February, 1980
Centre national de la recherche scientifique (France)
Sponsored by the Centre national de la recherche scientifique and the Societe francaise de physique.
Includes bibliographical references and index.