中国科学院数学与系统科学研究院期刊网
AMS
Second Order Nonlinear Evolution Inclusions Ⅰ:Existence and Relaxation Results
Nikolaos S. PAPAGEORGIOU, Nikolaos YANNAKAKIS
Acta Mathematica Sinica . 2005, (5): 977 -996 .  DOI: 10.1007/s10114-004-0508-y