[3] Chari V., Pressley A.: 
A Guide to Quantum Groups. Cambridge University Press, Cambridge, 1994. 
MR 1300632 | 
Zbl 0839.17010[5] Drinfeld V.G.: 
On some unsolved problems in quantum group theory. in Quantum Groups (P.P. Kulish, ed.), Lecture Notes in Mathematics, 1510, Springer, Berlin, 1992, pp. 1–8. 
MR 1183473 | 
Zbl 0765.17014[9] Klim J., Majid S.: 
Bicrossproduct Hopf quasigroups. Comment. Math. Univ. Carolin. 51 (2010), 287–304. 
MR 2682482 | 
Zbl 1224.81014[10] Manin Yu.I.: 
Cubic Forms: Algebra, Geometry, Arithmetic. Nauka, Moscow, 1972 (in Russian). 
MR 0833513 | 
Zbl 0582.14010[11] Nichols W.D., Taft E.J.: 
The left antipodes of a left Hopf algebra. in Algebraists' Homage (S.A. Amitsur, D.J. Saltman and G.B. Seligman, eds.), Contemporary Mathematics, 13, American Mathematical Society, Providence, RI, 1982, pp. 363–368. 
DOI 10.1090/conm/013/685972 | 
MR 0685972 | 
Zbl 0501.16013[15] Smith J.D.H.: 
An Introduction to Quasigroups and Their Representations. Chapman and Hall/CRC, Boca Raton, FL, 2007. 
MR 2268350 | 
Zbl 1122.20035