1. R. Bott, Canadian Math. Bulletin, 28 (2), 129–164 (1985).
2. V. Chari and A. Pressley, A Guide to Quantum Groups (Cambridge University Press, 1994).
3. H. L. Huru, Lobachevskii J. of Mathematics 24, 13–42 (2006).
4. H. L. Huru, Lobachevskii J. of Mathematics 25, 131–185 (2007).
5. H. L. Huru, Russian Mathematics (Iz. VUZ) 52 (4), 65–76 (2008).