聂东明, 李海霞, 刘家保.常微分方程解的存在唯一性定理证明[J].重庆工商大学学报(自然科学版),2015,32(4):36-39
NIE Dongming, LI Haixia, LIU Jiabao. Proof of Sole Existence and Uniqueness Theorem ofSolution to Ordinary Differential Equations[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2015,32(4):36-39