@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/Walter_Christaller>
  skos:definition "Before the German geographer Walter Christaller's central place theory (1933), urban places were viewed in isolation from one another, as unique single entities, differentiated by their position in a hierarchy based on population size. Christaller's dissertation, Die zentralen Orte in Süddeutschland, broke from this prevailing view. [Source: <a href=\"https://sk.sagepub.com/reference/geography/n161.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Geography; Christaller, Walter (1893–1969)</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/key_people_in_geography> ;
  skos:prefLabel "Walter Christaller"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/key_people_in_geography>
  skos:prefLabel "key people in geography"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Walter_Christaller> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/people>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "people"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/Walter_Christaller> .