Thermodynamics of the Limiting Cases of the XXZ Model Without Bethe Ansatz Rojas, Onofre ; de Souza, S. M. ; Corrêa Silva, E. V. ; Thomaz, M. T. Abstract Publication: Brazilian Journal of Physics Pub Date: December 2001 DOI: 10.1590/S0103-97332001000400008 Bibcode: 2001BrJPh..31..577R