@Incollection{baumgartner1998geschichtsbewutsein,
  author = {Baumgärtner, Ingrid},
  title  = {Geschichtsbewußtsein in hochmittelalterlichen italienischen Privaturkunden},

  year   = {1998},
  number = {},
  url    = {http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:de:hebis:34-2007101919462},

  const  = {\ text}
}