Carmen CortésClara I. GrimaFerran HurtadoAlberto Márquez 0001Francisco SantosJesus ValenzuelaTransforming triangulations of polygons on non planar surfaceshttp://arxiv.org/abs/math/03112282003CoRRmath.MG/0311228db/journals/corr/corr0311.html#math-MG-0311228