Light $\Xi$ hypernuclei in four-body cluster models
  Detailed structure calculations in $^{\: 12}_{\Xi^-}$Be, $^{\: 5}_{\Xi^-}$H, $^{\: 9}_{\Xi^-}$Li, $^{\: 7}_{\Xi^-}$H and $^{\:10}_{\Xi^-}$Li are performed within the framework of the microscopic two-, three- and four-body cluster models using the Gaussian Expansion Method. 
E. Hiyama, Y. Yamamoto, T. Motoba, Th. A. Rijken, and M. Kamimura