中国科学院数学与系统科学研究院期刊网
Positive Solutions and Multiplicity of Fourth-Order Boundary Value Problems with Two Parameters
Chang Ci PANG,Zhong Li WEI
Acta Mathematica Sinica, Chinese Series . 2006, (3): 625 -632 .  DOI: 10.12386/A2006sxxb0078