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PREFERRED TERM
四色問題  
SOURCE
  • 四色問題 / 一松信 著
  • 岩波数学辞典 ; 平凡社大百科事典
URI
http://id.ndl.go.jp/auth/ndlsh/00571266
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RDF/XML TURTLE JSON-LD last modified 2011-04-22T16:23:03 Created 1980-06-201980-06-20
EQUIVALENT CONCEPTS
National Diet Library Subject Headings (NDLSH) 3
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