中国科学院数学与系统科学研究院期刊网
A Note on Singular Limit of the Exact Controllaility of Dissipative Wave Equations
Yu Ping TANG(1),Xu ZHANG(2)
Acta Mathematica Sinica, Chinese Series . 2002, (1): 109 -116 .  DOI: 10.12386/A2002sxxb0014