中国科学院数学与系统科学研究院期刊网
AMS
One-Dimensional Nonlinear Laplacians under a 3-Point Boundary Condition
Bruce D.CALVERT
Acta Mathematica Sinica . 2010, (9): 1641 -1652 .  DOI: 10.1007/s10114-010-7285-6