@incollection{nebenzahl1990kolumbusatlas,
  address = {Braunschweig},
  author = {Nebenzahl, Kenneth},
  interhash = {a32a09a977c56726ab5d2e2d9f9bb7cb},
  intrahash = {119ce3c0f3bfd4e31d5072bcb40a0630},
  note = {Übers. aus dem Amerikanischen: Jobst-Christian Rojahn},
  pages = {9-17},
  title = {Der Kolumbusatlas. Karten aus der Frühzeit der Entdeckungsreisen},
  year = 1990
}

@article{astengo1990elenco,
  author = {Astengo, Corradino},
  interhash = {e3faa9db6b224b23b078fe04b2d403be},
  intrahash = {b8f8c8a89e15b1737d10e9bdfb2cd4bb},
  journal = {An-nali di ricerche e studi di geografia},
  pages = {1-28},
  title = {Elenco di carte ed atlanti nautici medievali di autore genovese},
  volume = 46,
  year = 1990
}