1. On Duality in Some Problems of Geometric Control

   • P. A. Fuhrmann

   OriginalPaper 29 July 2006 Pages: 207 - 251

2. Group Classification and Exact Solutions of Nonlinear Wave Equations

   • V. Lahno
   • R. Zhdanov
   • O. Magda

   OriginalPaper 27 June 2006 Pages: 253 - 313