@Article{         Fraisse:1950,
  Author        = {Fra{\"\i}ss{\'e}, Roland},
  date-added    = "2021-08-11 13:32:39 +0200",
  date-modified = "2021-08-11 13:32:39 +0200",
  Journal       = "Comptes Rendus",
  Pages         = "1022---1024",
  Title         = "Sur une nouvelle classification des syst{\`e}mes de relations",
  Volume        = "230",
  Year          = "1950"
}

@Article{ Fraisse:1950, Author = {Fra{\"\i}ss{\'e}, Roland}, date-added = "2021-08-11 13:32:39 +0200", date-modified = "2021-08-11 13:32:39 +0200", Journal = "Comptes Rendus", Pages = "1022---1024", Title = "Sur une nouvelle classification des syst{`e}mes de relations", Volume = "230", Year = "1950" }