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2. M. Barros, Symmetric configurations of classical string with rigidity, Preprint, 1999.
3. The conformal total tension variational problem in Kaluza–Klein supergravity;Barros;Nucl. Phys. B,1998
4. Willmore tori and Willmore–Chen submanifolds in pseudo-Riemannian space;Barros;J. Geom. Phys.,1998
5. M. Barros, A. Ferrández, P. Lucas, M.A. Meroño, A criterion for reduction of variables in the Willmore–Chen variational problem and its applications, Trans. AMS, in press.