A new metric for rotating charged Gauss-Bonnet black holes in AdS spaces
  This paper presents a new metric for slowly rotating charged Gauss-Bonnet black holes in higher dimensional anti-de Sitter spaces. Taking the angular momentum parameter $a$ up to second order, the slowly rotating charged black hole solutions are obtained by working directly in the action. 
De-Cheng Zou, Zhan-Ying Yang, Rui-Hong Yue and Tian-Yi Yu
gr-qc