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							PDF(1068 KB) 
						
						
					 
			Variation of Frost Days and Its Relationship to Regional Warming in Northern China
MA Zhuguo
Acta Geographica Sinica ›› 2003, Vol. 58 ›› Issue (7s) : 31-37.
 PDF(1068 KB)
						
							PDF(1068 KB) 
						
						
					 PDF(1068 KB)
						
							PDF(1068 KB) 
						
						
					Variation of Frost Days and Its Relationship to Regional Warming in Northern China
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