@Book{            nonholo,
  Author        = "Gerhold, Stefan",
  date-added    = "2021-01-18 13:56:43 +0100",
  date-modified = "2021-01-18 13:56:43 +0100",
  Series        = "The electronic journal of combinatorics",
  Title         = "On Some Non-Holonomic Sequences",
  Volume        = "11",
  Year          = "2004",
  File          = "On Some Non-Holonomic Sequences - 1840-PDF file-1919-1-10-20120117 - a - a - a - w.pdf",
  file-2        = "nonhol\_talk - a - a - a - w.pdf"
}

@Book{ nonholo, Author = "Gerhold, Stefan", date-added = "2021-01-18 13:56:43 +0100", date-modified = "2021-01-18 13:56:43 +0100", Series = "The electronic journal of combinatorics", Title = "On Some Non-Holonomic Sequences", Volume = "11", Year = "2004", File = "On Some Non-Holonomic Sequences - 1840-PDF file-1919-1-10-20120117 - a - a - a - w.pdf", file-2 = "nonhol_talk - a - a - a - w.pdf" }