@Unpublished{     WojciechPrzybyszewski,
  Author        = "Przybyszewski, Wojciech",
  date-added    = "2021-12-31 15:30:47 +0100",
  date-modified = "2021-12-31 15:31:31 +0100",
  Month         = "November",
  Title         = "Finite model theory -- homework 1",
  Year          = "2021",
  File          = "fmt\_1\_gwiazdki.pdf"
}

@Unpublished{ WojciechPrzybyszewski, Author = "Przybyszewski, Wojciech", date-added = "2021-12-31 15:30:47 +0100", date-modified = "2021-12-31 15:31:31 +0100", Month = "November", Title = "Finite model theory -- homework 1", Year = "2021", File = "fmt_1_gwiazdki.pdf" }