參考資料:
National Weather Servcie, “NWS Windchill Chart”, http://www.nws.noaa.gov/om/winter/faqs.shtml, (last accessed on 22 Feb 2018).
BBC, 2018, “Winter Olympics 2018: Will Pyeongchang be too cold for a Winter Games?”, http://www.bbc.com/sport/winter-olympics/42885124, (last accessed on 22 Feb 2018).
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