A Comment on the Letter by Shu Chen, H. Büttner, and J. Voit, Phys. Rev. Lett. 87, 087205 (2001). The authors of the Letter offer a Reply.
DOI:https://doi.org/10.1103/PhysRevLett.89.149701
©2002 American Physical Society
Luca Capriotti
Federico Becca
Sandro Sorella
Alberto Parola
Vol. 89, Iss. 14 — 30 September 2002
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