%0 Journal Article %A Wolodymyr Skripnik %T Order Parameters in XXZ-Type Spin $\frac12$ Quantum Models with Gibbsian Ground States %J Symmetry, integrability and geometry: methods and applications %D 2006 %V 2 %U http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a10/ %G en %F SIGMA_2006_2_a10