Biharmonic C-parallel Legendrian submanifolds in 7-dimensional Sasakian   space forms
  In [5], D. Fetcu and C. Oniciuc presented the classification result for biharmonic $\mathcal{C}$-parallel Legendrian submanifolds in $7$-dimensional Sasakian space forms. However, it is incomplete. In this paper, all such submanifolds are explicitly determined. 
Toru Sasahara
math.DG