@prefix mdl: <http://data.loterre.fr/ark:/67375/MDL> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

mdl: a skos:ConceptScheme .
mdl:-VBH0FJD4-8
  skos:narrower mdl:-S3T8NL74-6 ;
  skos:broader mdl:-G1W33DTD-K ;
  skos:inScheme mdl: ;
  skos:prefLabel "billard mathématique"@fr, "dynamical billiard"@en ;
  skos:altLabel "mathematical billiard"@en ;
  a skos:Concept ;
  skos:hiddenLabel "mathematical billiards"@en, "billards mathématiques"@fr, "dynamical billiards"@en .

mdl:-S3T8NL74-6
  skos:prefLabel "gaz de Lorentz"@fr, "Lorentz gas"@en ;
  a skos:Concept ;
  skos:broader mdl:-VBH0FJD4-8 .

mdl:-G1W33DTD-K
  skos:prefLabel "dynamical system"@en, "système dynamique"@fr ;
  a skos:Concept ;
  skos:narrower mdl:-VBH0FJD4-8 .