汪会民; 蒋威;.二阶脉冲时滞微分方程正解的存在性[J].智能科学与工程学报,2011,28(2):111-114118
WANG Hui-min; JIANG Wei. Existence of Positive Solutions of Second-order Impulsive Delay Differential Equation[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2011,28(2):111-114118