  Local multiplicity fluctuations of hadrons produced in the decay of $Z^0$
were studied on the basis of L3 data. In addition to the
normalized-factorial-moment method, the fluctuations were studied for the first
time by the use of bunching parameters. A strong multifractal structure was
observed inside jets. JETSET 7.4 PS describes the fluctuations in the azimuthal
angle defined with respect to the beam axis reasonably well. For the
fluctuations in rapidity, defined with respect to the thrust axis and in the
four-momentum-difference variable, JETSET 7.4 PS overestimates the
fluctuations.
