1. E. Witten, Some Comments on String Dynamics, contributed to Strings '95, hep-th/9507121.
2. A. Strominger, Open p-Branes, hep-th/9512059.
3. Five-Branes and M-Theory on an Orbifold;Witten;Nucl. Phys. B,1996
4. O.J. Ganor and A. Hanany, Small E8 Instantons and Tensionless Non-Critical Strings, hep-th/9602120.
5. Supersymmetry and Dual String Solitons;Duff;Phys. Lett. B,1995