@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/math0006753>
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006754> ;
  skos:prefLabel "معادله کلاین-گوردون شبه‌خطی"@fa, "quasi-linear klein-gordon equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/math0006754>
  skos:prefLabel "معادله کلاین-گوردون"@fa, "klein-gordon equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0006753> .