MARKUS KOTTEK, JÜRGEN GRIESER, CHRISTOPH BECK, BRUNO RUDOLF and FRANZ RUBEL, World Map of the Köppen-Geiger climate classification updatedArchived 2009년 3월 27일 - 웨이백 머신, Biometeorology Group, University of Veterinary Medicine Vienna, Vienna, Austria, Global Precipitation Climatology Centre, Deutscher Wetterdienst, Offenbach, Germany, by Gebrüder Borntraeger 2006 - 관련 원문(4쪽): "one of these classes (Dsd) does never occur in this map and some others (Cfc, Csc, Cwc, Dsa, Dsb and Dsc) occur only in very small areas"
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MARKUS KOTTEK, JÜRGEN GRIESER, CHRISTOPH BECK, BRUNO RUDOLF and FRANZ RUBEL, World Map of the Köppen-Geiger climate classification updatedArchived 2009년 3월 27일 - 웨이백 머신, Biometeorology Group, University of Veterinary Medicine Vienna, Vienna, Austria, Global Precipitation Climatology Centre, Deutscher Wetterdienst, Offenbach, Germany, by Gebrüder Borntraeger 2006 - 관련 원문(4쪽): "one of these classes (Dsd) does never occur in this map and some others (Cfc, Csc, Cwc, Dsa, Dsb and Dsc) occur only in very small areas"