• [1]

    Alcaraz F C. Barber M N, Batchelor M T, Baxter R J and Quispel G R W, J. Phys., A20(1987), 6397.[2] Yang C. N. arid Yang C. P. Phys. Rev. 150(1966), 321.[3] H. N. V. Temperley, E. H. Lieb, Proc. Roy. Sac. Lond., A, 322(1971), 25.[4] Drinfel'd V G, Quantum Group, Vol. 1, 798, Proc. 1. C. M. Berkeley 1986.[5] Jimbo M, Lett. Math. Phys., 10(1985), 63.[6] Levy D, Phys. Rev. Lett., 64(1990), 499.[7] Pasquier V and Saleur H, Nucl. Phys., B330(1990), 523.