q=%E6%82%96%E8%AE%BA%E4%B8%8E%E8%B0%AC%E8%AF%AF%EF%BC%9Ahexaflexagons+and+other+mathematical+diversions&searchType=standard&isFacet=true&view=standard&rows=10&sortWay=score&sortOrder=desc&curlibcode=NS&searchWay0=marc&logical0=AND
rows=10&curlibcode=NS&searchWay0=marc&logical0=AND
悖论与谬误:Hexaflexagons and other mathematical diversions