1. Some open problems and conjectures on submanifolds of finite type;Chen;Soochow J. Math.,1991
2. Biharmonic submanifolds of S3;Caddeo;Internat. J. Math.,2001
3. A short survey on biharmonic maps between Riemannian manifolds;Montaldo;Rev. Un. Mat. Argentina,2006
4. Classification results for biharmonic submanifolds in spheres;Balmus;Israel J. Math.,2008
5. A. Balmuus, S. Montaldo, C. Oniciuc, Biharmonic submanifolds in space forms, in: Symposium Valenceiennes, 2008, pp. 25–32.