中国科学院数学与系统科学研究院期刊网
Second Order Three-point Boundary Value Problems in Abstract Spaces
Mieczysław Cichoń, Hussein A.H. Salem
Acta Mathematicae Applicatae Sinica(English Series) . 2014, (4): 1131 -1152 .  DOI: 10.1007/s10255-014-0429-1