The complete basis with an unextendible product basis and   exact-entanglement bases (CBUPB) of three qubit
  In this paper, an unextendible product basis and exact-entanglement bases of three qubit is given, and the properties of entanglement for exact-entanglement bases are also discussed. In addition, the bound entangled mixed state is obtained from the exact-entanglement bases. 
Xin-Wei Zha, Cun-Bing Huang