SPECTRUM OF LOW-LYING EXCITATIONS IN A SUPERSYMMETRIC EXTENDED HUBBARD-MODEL
INTERNATIONAL JOURNAL OF MODERN PHYSICS B 8:23 (1994) 3243-3279
SPIN SOFTENING IN MODELS WITH COMPETING INTERACTIONS - A HIGH-ANISOTROPY EXPANSION TO ALL ORDERS
PHYSICAL REVIEW B 50:14 (1994) 10385-10388
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