SU(2)XSU(2)-INVARIANT SCATTERING MATRIX OF THE HUBBARD-MODEL
NUCLEAR PHYSICS B 426:3 (1994) 505-533
THE ROLE OF SPIN ANISOTROPY IN THE UNBINDING OF INTERFACES
EUROPHYSICS LETTERS 28:7 (1994) 465-469
The role of symmetries in systems of strongly correlated electrons
CORRELATION EFFECTS IN LOW-DIMENSIONAL ELECTRON SYSTEMS 118 (1994) 57-67
MASSLESS FLOWS I: THE SINE-GORDON AND O(n) MODELS
International Journal of Modern Physics A World Scientific Publishing 8:32 (1993) 5717-5750
MASSLESS FLOWS II: THE EXACT S-MATRIX APPROACH
International Journal of Modern Physics A World Scientific Publishing 8:32 (1993) 5751-5778