@Article{a.(2009faking,
  author = {Seaver, Kirsten A.},
  title  = {Faking History. The ‘Vinland Map’},
  journal = {Journal of the International Map Collectors’ Society},
  year   = {2009},
  number = {},
  url    = {},

  const  = {\ text}
}
@Article{thomas2008altkarte,
  author = {Horst, Thomas},
  title  = {Die Altkarte als Quelle für den Historiker. Die Geschichte der Kartographie als Historische Hilfswissenschaft},
  journal = {Archiv für Diplomatik},
  year   = {2008},
  number = {},
  url    = {},

  const  = {\ text}
}
@Incollection{michele2006gentes,
  author = {Campopiano, Michele},
  title  = {Gentes, monstra, fere: L'Histoire d'Alexandre dans une encyclopédie du XIIe siècle},

  year   = {2006},
  number = {},
  url    = {},

  const  = {\ text}
}
@Incollection{michele2005geografia,
  author = {Campopiano, Michele},
  title  = {Geografia e storia a Pisa nel XII secolo. Il Liber Guidonis compositus de variis historiis: natura e tradizione},

  year   = {2005},
  number = {},
  url    = {},

  const  = {\ text}
}