Azagra D. . y Ferrera J. . (2006). Inf-Convolution and Regularization of Convex Functions on Riemannian Manifolds of Nonpositive Curvature. Revista Matemática Complutense, 19(2), 323-345. https://doi.org/10.5209/rev_REMA.2006.v19.n2.16592