1. N. Andruskiewitsch, H.-J. Schneider, Lifting of quantum linear spaces and pointed Hopf algebras of orderp3
2. M. Beattie, S. Dăscălescu, L. Grünenfelder, Constructing pointed Hopf algebras by Ore extensions
3. M. Beattie, S. Dăscălescu, L. Grünenfelder, On pointed Hopf algebras of dimensionpn, Proc. Amer. Math. Soc.
4. On pointed ribbon Hopf algebras;Gelaki;J. Algebra,1996
5. Quantum Groups;Kassel,1995