Inference on the variance and smoothing of the paths of diffusions Gonzalo Perera; Mario Wschebor — 2002 Annales de l'I.H.P. Probabilités et statistiques
From elementary martingale calculus to rigorous properties of mixtures of experts. Ghattas, Badih; Perera, Gonzalo — 2006 Boletín de la Asociación Matemática Venezolana