iTunesU Categories in SKOS (source: http://deimos.apple.com/rsrc/doc/iTunesUAdministrationGuide/iTunesUintheiTunesStore/chapter_13_section_3.html#//apple_ref/doc/uid/AdminGuide-CH9-SW4)
http://data.open.ac.uk/topic/itunesu
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Type Concept Scheme
Label iTunesU Categories in SKOS (source: http://deimos.apple.com/rsrc/doc/iTunesUAdministrationGuide/iTunesUintheiTunesStore/chapter_13_section_3.html#//apple_ref/doc/uid/AdminGuide-CH9-SW4)

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