1
Published: 2000
Superior document: Prépublication / Institut de Mathématique de Rennes 00-25
2
Published: 2002
Superior document: Prépublication / Institut de Mathématique de Rennes 02-54
3
Published: 2002
Superior document: Prépublication / Institut de Mathématique de Rennes 02-53
4
5
Published: 1993.
Superior document: Memoirs of the American Mathematical Society, Volume 106, Number 511
6
Published: 1997
7
Published: 1998