@Misc{            wibmer,
  date-added    = "2020-04-10 08:50:04 +0200",
  date-modified = "2020-04-10 08:50:10 +0200",
  Title         = "Algebraic Difference Equations",
  File          = "Algebraic Difference Equations - wibmer1 - a - o.pdf"
}

@Misc{ wibmer, date-added = "2020-04-10 08:50:04 +0200", date-modified = "2020-04-10 08:50:10 +0200", Title = "Algebraic Difference Equations", File = "Algebraic Difference Equations - wibmer1 - a - o.pdf" }