中国科学院数学与系统科学研究院期刊网
AMS
Landesman-Lazer Type Conditions and Multiplicity Results for Nonlinear Elliptic Problems with Neumann Boundary Values
Edcarlos Domingos DA SILVA, Francisco Odair DE PAIVA
Acta Mathematica Sinica . 2014, (2): 229 -250 .  DOI: 10.1007/s10114-014-2750-2