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@Book{            Oosten,
  Author        = "van Oosten, Jaap",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:27 +0200",
  Keywords      = "category theory",
  Title         = "Basic Category Theory",
  File          = "Basic Category Theory - Oosten (0) (0) - a - a.pdf"
}

@Book{ Oosten, Author = "van Oosten, Jaap", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:27 +0200", Keywords = "category theory", Title = "Basic Category Theory", File = "Basic Category Theory - Oosten (0) (0) - a - a.pdf" }