Limite d'hypersurfaces localement convexes.
Long geodesics on convex surfaces.
Mass of rays in Alexandrov spaces of nonnegative curvature.
Metric minimizing surfaces.
Minkowski versus Euclidean rank for products of metric spaces.
Necessary and sufficient conditions for unique determination of plane domains.
Non-parametric convex hypersurfaces with a curvature restriction
On a Carathéodory's conjecture on umbilics : representing ovaloids
On a Conjectured Characterization of the Sphere.
On a problem of W. J. Firey in connection with the characterization of spheres.
On Asymptotic Volume of Tori.
On complete surfaces with Gaussian curvature zero in 3-sphere
On Convex Hypersurfaces in a Space Form.
On convex hypersurfaces in
On equiaffine Weingarten surfaces
On minimal surfaces in
On orthogonal conjugate nets in
On surfaces in with constant Gauss curvature
On surfaces with constant mean curvature
On the curvature of nonregular saddle surfaces in the hyperbolic and spherical three-space.