中国科学院数学与系统科学研究院期刊网
Positive Solutions for Nonlinear m-Point Boundary Value Problems on Time Scales
Hong Rui SUN, Wan Tong LI
Acta Mathematica Sinica, Chinese Series . 2006, (2): 369 -380 .  DOI: 10.12386/A2006sxxb0047