Media type: E-Article Title: Introduction Contributor: Duverger, Maurice [Author] Published in: Revue française de science politique ; Vol. 34, n° 4-5, pp. 1033-1041 Language: French ISSN: 0035-2950 Keywords: intro Origination: Footnote: Access State: Open Access Rights information: Attribution - Non Commercial - No Derivs (CC BY-NC-ND)