Authors: Tonel, AP Foerster, A Links, J Malvezzi, AL

Citation: Ap. Tonel et al., Integrable anisotropic spin-ladder model - art. no. 054420, PHYS REV B, 6405(5), 2001, pp. 4420

Authors: Foerster, A Links, J Tonel, AP

Citation: A. Foerster et al., Algebraic properties of an integrable t-J model with impurities, NUCL PHYS B, 552(3), 1999, pp. 707-726