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

psr:-HLPMWTJF-1
  skos:prefLabel "projection"@fr, "projection"@en ;
  a skos:Concept ;
  skos:narrower psr:-DTDHZQD0-9 .

psr: a skos:ConceptScheme .
psr:-DTDHZQD0-9
  skos:related psr:-TRJ3KP7F-H ;
  a skos:Concept ;
  skos:inScheme psr: ;
  skos:broader psr:-HLPMWTJF-1 ;
  skos:prefLabel "orthogonal projection"@en, "projection orthogonale"@fr ;
  skos:altLabel "orthographic projection"@en .

psr:-TRJ3KP7F-H
  skos:prefLabel "Bessel's inequality"@en, "inégalité de Bessel"@fr ;
  a skos:Concept ;
  skos:related psr:-DTDHZQD0-9 .