1. Frenkel, E., Reshetikhin, N.: Quantum affine algebras and deformations of the Virasoro and . Preprint q-alg/9505025
2. Shiraishi, J.: Phys. Lett.A171, 243–248 (1992); Awata, H., Odake, S., Shiraishi, J.: Commun. Math. Phys.162, 61–83 (1994)
3. Drinfeld, V.G., Sokolov, V.V.: Sov. Math. Dokl.23, 457–462 (1981); J. Sov. Math.30, 1975–2035 (1985)
4. Baxter, R.J.: Exactly Solved Models of Statistical Mechanics. New York-London: Academic Press 1982; Reshetikhin, N.Yu.: Lett. Math. Phys.7, 205–213 (1983); Theor. Math. Phys.63, 559–569 (1985); Lett. Math. Phys.14, 235–246 (1987); Bazhanov, V.V., Reshetikhin, N.Yu.: J. Phys.A23, 1477–1492 (1990); Kuniba, A., Suzuki, J.: Analytic Bethe Ansatz for fundamental representations of Yangians. Preprint hep-th/9406180 (1994)
5. Feigin, B., Frenkel, E., Reshetikhin, N.: Commun. Math. Phys.166, 27–62 (1994)