[1]  Gear J, Grimshaw R. Weak and strong interactions between internal solitary waves equation. Stud Appl Math, 1984, 70: 235--258

[2]  Bona J, Ponce G, Saut J-C, Tom M M. A model system for strong interaction between internal solitary waves. Commun Math Phys, 1992, 142: 287--313

[3]  Linares F, Panthee M. On the Cauchy problem for a coupled system of KdV equation. Communications on Pure and Applied Analysis, 2004, 3(3): 417--431

[4]  Alarcón E, Angulo J, Montenegro J F. Stability and instability of solitary waves for a nonlinear dispersive system. Nonlinear Analysis, 1999, 36: 1015--1035

[5]  Saut J-C, Scheurer B. Unique continuation for some evolution equations. J Diff Eqs, 1987, 66: 118--139

[6]  Zhang  B Y. Unique continuation for the Kortemeg-de Vries equation. SIAM J Math Anal, 1992, 23: 55--71

[7]  Bourgain J. On the compactness of the support of solutions of dispersive equations. Internat Math Res Notices, 1997, 9: 437--447

[8]  Kenig C E, Ponce G, Vega L. On the support of solutions to the generalized KdV equation. Ann Inst H Poincaré Anal Non Lin\'eaire, 2002, 19: 191--208

[9]  Panthee M. A note on the unique continuation property for Zakharov-Kuznetsov equation. Nonlinear Analysis-Theory Methods and Applications. 2004, 59: 425--438

[10]  Carvajal X, Panthee M. Unique continuation property for a higher order nonlinear Schrödinger equation. J Math Anal Appl, 2005, 303: 188--207

[11]  Kozakevicius A, Vera O. On the unique continuation property for a nonlinear dispersive system. Electronic
Journal of Qualitalive Theory of Differential Equations, 2005, 14: 1--23