Keita, MoussaVollmer, BenoîtChenal, JérômePedrazzini, Yves2009-06-102009-06-102009-06-102009https://infoscience.epfl.ch/handle/20.500.14299/40387Nouakchottespace publicusagersruestreetpublic spacePortraits d'usagerstext::book/monograph::book part or chapter