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			Relations between Directional Derivatives for Smooth Functions in 2D and 3D Spaces
Gui-xia LÜ, Long-jun SHEN
Acta Mathematicae Applicatae Sinica(English Series) ›› 2016, Vol. 32 ›› Issue (4) : 899-912.
						
							PDF(245 KB) 
						
						
					
						
							PDF(245 KB) 
						
						
					Relations between Directional Derivatives for Smooth Functions in 2D and 3D Spaces
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