\bibitem{Cousot03-WG-2-3-Biarritz}
P{.} Cousot.
\newblock IFIP WG 2.3 Biarritz meeting talks.
\newblock 23—28 mars 2003, Hotel Miramar, Biarritz, France.

@unpublished{Cousot03-WG-2-3-Biarritz,
   author = {P{.} Cousot},
   title  = {IFIP WG 2.3 Biarritz meeting talks},
   note   = {23—28 mars 2003, Hotel Miramar, Biarritz, France},
}