%0 Journal Article
%T Connected Hopf algebras of Gelfand-Kirillov dimension four
%A D. -G. Wang
%A J. J. Zhang
%A G. Zhuang
%J Mathematics
%D 2013
%I arXiv
%X We classify connected Hopf algebras of Gelfand-Kirillov dimension 4 over an algebraic closed field of characteristic zero.
%U http://arxiv.org/abs/1302.2270v1