[1] LAB ACCELERATEUR LINEAIRE,ORSAY,FRANCE
[2] UNIV PARIS,PHYS NUCL & HAUTES ENERGIES LAB,PARIS,FRANCE
[3] KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH,D-7500 KARLSRUHE 1,FED REP GER
[4] UNIV KARLSRUHE,D-7500 KARLSRUHE,FED REP GER
[5] MAX PLANCK INST PHYS & ASTROPHYS,D-8000 MUNICH 40,FED REP GER
[6] CENS,F-91190 GIF SUR YVETTE,FRANCE