Extremal Entanglement For Triqubit Pure States
  A complete analysis of entangled triqubit pure states is carried out based on a new simple entanglement measure. An analysis of all possible extremally entangled pure triqubit states with up to eight terms is shown to reduce, with the help of SLOCC transformations, to three distinct types. The analysis presented are most helpful for finding different entanglement types in multipartite pure state systems. 
Feng Pan, Dan Liu, Guoying Lu, and J. P. Draayer