[4] Li, A.-M., Li., J.-M.:
An intrinsic rigidity theorem for minimal submanifolds in a sphere. Arch. Math., 58, 1992, 582-594,
DOI 10.1007/BF01193528 |
MR 1161925
[8] Xu, H.-W., Yang., D.:
The gap phenomenon for extremal submanifolds in a Sphere. Differential Geom and its Applications, 29, 2011, 26-34,
MR 2784286
[9] Wu., L.:
A class of variational problems for submanifolds in a space form. Houston J. Math., 35, 2009, 435-450,
MR 2519540