Simultaneous X-ray and TeV observations of a rapid flare from markarian 421

MARASCHI L;FOSSATI G;TAVECCHIO E;CHIAPPETTI L;CELOTTI A;GHISELLINI G;GRANDI P;PIAN E;TAGLIAFERRI G;TREVES, ALDO;BRESLIN AC;BUCKLEY JH;CARTER LEWIS DA;CATANESE M;CAWLEY MF;FEGAN DJ;FEGAN S;FINLEY J;GAIDOS J;HALL T;HILLAS AM;KRENNRICH F;LESSARD RW;MASTERSON C;MORIARTY P;QUINN J;ROSE J;SAMUELSON F;WEEKES TC;URRY CM;TAKAHASHI T.

1999-01-01