By Gurarie V.   Tsvelik A. M.   in Journal of Low Temperature Physics

ISSN:0022-2291|135|3-4|245-255

Springer Publishing Company ‎(2004)‎

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By Gurarie V.   Kim Y. B.   in EPL (EUROPHYSICS LETTERS)

ISSN:0295-5075|52|6|667-673

Edp Sciences‎(2010)‎

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