title: On directed information theory and Granger causality graphs.
authors.affiliation: GIPSAlab, Department of Images and Signals, CNRS UMR 5216, BP46, 38402, Saint Martin d'Hères Cedex, France. bidou.amblard@gipsa-lab.grenoble-inp.fr
authors.forename: Pierre-Olivier
authors.initials: PO
authors.lastname: Amblard
authors.forename: Olivier J J
authors.initials: OJ
authors.lastname: Michel