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TIAN YU, JIANG DAQING, GE WEIGAO.\'a0 2008.\'a0\'a0EXISTENCE OF POSITIVE SOLUTIONS FOR PERIODIC BOUNDARY VALUE PROBLEMS WITH IMPULSE EFFECTS. Dynamic Systems and Applications. 17:18.\par \par HU WEIMIN, JIANG DAQING, LUO GEXIN.\'a0 2008.\'a0\'a0EXISTENCE THEORY FOR SINGLE AND MULTIPLE SOLUTIONS TO SINGULAR DISCRETE BOUNDARY VALUE PROBLEMS OF SECOND-ORDER DIFFERENTIAL SYSTEMS. Dynamic Systems and Applications. 17:14.\par \par JIANG DAQING, CHU JIFENG, HE YING.\'a0 2007.\'a0\'a0MULTIPLE POSITIVE SOLUTIONS OF STURM-LIOUVILLE PROBLEMS FOR SECOND ORDER IMPULSIVE DIFFERENTIAL EQUATIONS. Dynamic Systems and Applications. 16:14.\par \par }