1. Nonlocal symmetries. Heuristic approach

   • I. Sh. Akhatov
   • R. K. Gazizov
   • N. Kh. Ibragimov

   OriginalPaper Pages: 1401 - 1450

2. Perturbation methods in group analysis

   • V. A. Baikov
   • R. K. Gazizov
   • N. Kh. Ibragimov

   OriginalPaper Pages: 1450 - 1490

3. Transformation groups in net spaces

   • V. A. Dorodnitsyn

   OriginalPaper Pages: 1490 - 1517