@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix ns0: <http://purl.org/ontology/gbv/> .
@prefix void: <http://rdfs.org/ns/void#> .

skos:broader
  rdfs:subPropertyOf skos:broaderTransitive ;
  skos:definition "Relates a concept to a concept that is more general in meaning."@en ;
  rdfs:comment "Broader concepts are typically rendered as parents in a concept hierarchy (tree)."@en ;
  rdfs:label "has broader"@en .

skos:related
  rdfs:subPropertyOf skos:semanticRelation ;
  skos:definition "Relates a concept to a concept with which there is an associative semantic relationship."@en ;
  rdfs:comment "skos:related is disjoint with skos:broaderTransitive"@en ;
  rdfs:label "has related"@en .

skos:altLabel
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "An alternative lexical label for a resource."@en ;
  rdfs:comment "skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties."@en, "The range of skos:altLabel is the class of RDF plain literals."@en ;
  rdfs:label "alternative label"@en .

<http://zbw.eu/stw/descriptor/15026-0>
  skos:prefLabel "Mathematical analysis"@en, "Analysis"@de ;
  a <http://zbw.eu/namespaces/zbw-extensions/Descriptor>, skos:Concept ;
  skos:narrower <http://zbw.eu/stw/descriptor/19583-4> .

skos:Concept
  rdfs:label "Concept"@en ;
  a owl:Class .

skos:prefLabel
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "The preferred lexical label for a resource, in a given language."@en ;
  rdfs:comment """skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise
      disjoint properties."""@en, "The range of skos:prefLabel is the class of RDF plain literals."@en, "A resource has no more than one value of skos:prefLabel per language tag."@en ;
  rdfs:label "preferred label"@en .

skos:inScheme
  skos:definition "Relates a resource (for example a concept) to a concept scheme in which it is included."@en ;
  rdfs:label "is in scheme"@en .

<http://zbw.eu/stw/descriptor/15555-1>
  skos:prefLabel "Kontrolltheorie"@de, "Control theory"@en ;
  a <http://zbw.eu/namespaces/zbw-extensions/Descriptor>, skos:Concept ;
  skos:related <http://zbw.eu/stw/descriptor/19583-4> .

<http://zbw.eu/namespaces/zbw-extensions/Descriptor>
  rdfs:label "Descriptor"@en ;
  a owl:Class .

<http://zbw.eu/stw/descriptor/19583-4>
  skos:related <http://zbw.eu/stw/descriptor/15555-1>, <http://zbw.eu/stw/descriptor/29961-6>, <http://zbw.eu/stw/descriptor/15554-3> ;
  ns0:gvkppn "091358426" ;
  skos:altLabel "Calculus of variations"@en, "Euler-Lagrange equation"@en, "Euler equation"@en, "Euler-Gleichungen"@de, "Envelope theorem"@en, "Boltzmann equations"@en, "Einhüllenden-Satz"@de, "Euler-Gleichung"@de, "Navier-Stokes equations"@en ;
  skos:prefLabel "Variational method"@en, "Variationsrechnung"@de ;
  skos:broader <http://zbw.eu/stw/descriptor/15026-0>, <http://zbw.eu/stw/thsys/194088> ;
  a skos:Concept, <http://zbw.eu/namespaces/zbw-extensions/Descriptor> ;
  skos:inScheme <http://zbw.eu/stw> .

<http://zbw.eu/stw/thsys/194088>
  skos:notation "N.09.01" ;
  rdfs:label "Mathematik"@de, "Mathematics"@en ;
  skos:prefLabel "N.09.01  Mathematik"@de, "N.09.01  Mathematics"@en ;
  a <http://zbw.eu/namespaces/zbw-extensions/Thsys>, skos:Concept ;
  skos:narrower <http://zbw.eu/stw/descriptor/19583-4> .

<http://zbw.eu/stw/descriptor/29961-6>
  skos:prefLabel "Differentialgleichung"@de, "Differential equation"@en ;
  a <http://zbw.eu/namespaces/zbw-extensions/Descriptor>, skos:Concept ;
  skos:related <http://zbw.eu/stw/descriptor/19583-4> .

<http://zbw.eu/stw/descriptor/15554-3>
  skos:prefLabel "Dynamische Optimierung"@de, "Dynamic programming"@en ;
  a <http://zbw.eu/namespaces/zbw-extensions/Descriptor>, skos:Concept ;
  skos:related <http://zbw.eu/stw/descriptor/19583-4> .

<http://zbw.eu/stw>
  skos:prefLabel "Standard-Thesaurus Wirtschaft"@de, "STW Thesaurus for Economics"@en ;
  a void:Dataset, skos:ConceptScheme .