2005

1. Comparison results for the volume of geodesic celestial spheres in Lorentzian manifolds

   Differential Geometry and its Application, Vol. 23, Núm. 1, pp. 1-16

2. Total curvatures of geodesic spheres associated to quadratic curvature invariants

   Annali di Matematica Pura ed Applicata, Vol. 184, Núm. 1, pp. 115-130

3. Total scalar curvatures of geodesic spheres and of boundaries of geodesic disks

   Progress in Mathematics (Springer Basel), pp. 131-143