@Incollection{peter2009fifteenthcentury,
  author = {Russell, Peter},
  title  = {Veni, vidi, vici: Some Fifteenth-century Eyewitness Accounts of Travel in the African Atlantic before 1492},

  year   = {2009},
  number = {},
  url    = {},

  const  = {\ text}
}
@Incollection{betschart1992zwischen,
  author = {Betschart, Andreas},
  title  = {Zwischen zwei Welten. Illustrationen in Berichten westeuropäischer Jerusalemreisender des 15. und 16. Jahrhunderts},

  year   = {1992},
  number = {},
  url    = {},

  const  = {\ text}
}