\bibitem{CousotCousot-RW-10-06-06}
P.~Cousot \& R.~Cousot.
\newblock The Scientific Work of Reinhard Wilhelm.
\newblock \emph{Special event to honour the 60th birthday of Prof.\ Reinhard Wilhelm}, 
          Universit\"at Saarbr\"ucken, Germany, June 10th, 2006.

@conference{CousotCousot-RW-10-06-06,
   author =    {P{.} Cousot and R{.} Cousot},
   title =     {The Scientific Work of {R}einhard {W}ilhelm},
   note    =   {\emph{Special event to honour the 60th birthday of Prof.\ Reinhard Wilhelm}, 
                Universit\"at Saarbr\"ucken, Germany, June 10th, 2006},
   month =     {10 June},
   year =      2006,
}