中国科学院数学与系统科学研究院期刊网
AMS
Global Existence of Solutions for the Kawahara Equation in Sobolev Spaces of Negative Indices
Hua WANG, Shang Bin CUI, Dong Gao DENG
Acta Mathematica Sinica . 2007, (8): 1435 -1446 .  DOI: 10.1007/s10114-007-0959-z