Affiliation: | 1. Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK;2. Charles Darwin University, Darwin, Northern Territory 0909, Australia;3. LAMSADE, CNRS UMR 7243, Université de Paris Dauphine, 75775 Paris, France;4. Rényi Institute of Mathematics, Hungarian Academy of Sciences, H-1053, Budapest, Hungary;5. LIP, UMR 5668, ENS de Lyon, CNRS, UCBL, INRIA, Université de Lyon, France;6. Singapore University of Technology and Design, Singapore |