-------------------------------------------------------------------------------- 2010 2010-1 W.-L. Yang and Y.-Z. Zhang, Drinfeld twists of the open XXZ chain with non-diagonal boundary terms, Nucl. Phys. B, 831: 408-428 (2010) -------------------------------------------------------------------------------- 2009 2009-1 W.-L. Yang, Y.-Z. Zhang and S. Kault, Differential operator realizations of super-algebras and free field representations of corresponding Nucl. Phys. B, 823: 372-402 (2009) -------------------------------------------------------------------------------- 2008 2008-1 W.-L. Yang and Y.-Z. Zhang, Free field realization of the current algebra, Phys. Rev. D, 78: 106004-106015 (2008) -------------------------------------------------------------------------------- 2008-2 W.-L. Yang and Y.-Z. Zhang, On explicit free field realizations of current algebras, Nucl. Phys. B, 800: 527-546 (2008) -------------------------------------------------------------------------------- 2008-3 W.-L. Yang and Y.-Z. Zhang, Multiple reference states and complete spectrum of the Belavin model with open boundaries, Nucl. Phys. B, 78: 9591-609 (2008) -------------------------------------------------------------------------------- 2007 2007-1 W.-L. Yang and Y.-Z. Zhang, On the second reference state and complete eigenstates of the open XXZ chain, JHEP 04, 044-054 (2007)
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