张付臣, 孙祥凯.微积分一种重要类型极限的计算方法[J].重庆工商大学学报(自然科学版),2015,32(7):46-47
ZHANG Fuchen, SUN Xiangkai. The Calculation Method of an Important Type of Limit in Calculus[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2015,32(7):46-47