Media type: E-Article Title: Le groupe de Heisenberg et les variétés de contact riemanniennes Contributor: Albert, Claude imprint: Elsevier BV, 2002 Published in: Bulletin des Sciences Mathématiques Language: French DOI: 10.1016/s0007-4497(01)01086-7 ISSN: 0007-4497 Keywords: General Mathematics Origination: Footnote: Access State: Open Access