@prefix jvr: <http://data.loterre.fr/ark:/67375/JVR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix mesh: <http://id.nlm.nih.gov/mesh/vocab#> .

jvr: a skos:ConceptScheme .
jvr:-CGXGTRTL-C
  owl:sameAs <http://id.nlm.nih.gov/mesh/D001718> ;
  dc:modified "2008-07-08"^^xsd:date ;
  skos:prefLabel "Birefringence"@en, "Biréfringence"@fr ;
  a skos:Concept, mesh:Descriptor ;
  skos:broader jvr:-TPSZL5MJ-6 ;
  skos:altLabel "Double Refraction"@en, "Double réfraction"@fr, "Réfraction double"@fr, "Birefraction"@en ;
  skos:definition "The property of nonisotropic media, such as crystals, whereby a single incident beam of light traverses the medium as two beams, each plane-polarized, the planes being at right angles to each other. (Cline et al., Dictionary of Visual Science, 4th ed)"@en ;
  skos:inScheme jvr: ;
  dc:established "1968-01-01"^^xsd:date ;
  dc:created "1999-01-01"^^xsd:date .

jvr:-TPSZL5MJ-6
  skos:prefLabel "Optical Phenomena"@en, "Phénomènes optiques"@fr ;
  a mesh:Descriptor, skos:Concept ;
  skos:narrower jvr:-CGXGTRTL-C .