  A systematic analysis of the data on 14.5A GeV/c $^{28}$Si-nucleus collisions
is carried out to investigate the behaviours of Renyi dimensions, Dq and
Multifractal Spectral Function, $f(\alpha_q)$. The Renyi dimensions, $D_q$, are
observed to decrease with increasing order of the moments, $q$. However, the
Multifractal Spectra are concave downwards with their maxima occurring around
$\alpha_q = 1.21 \pm 0.01$. A continuous curve representing Multifractal
Spectral Function, $f(\alpha_q)$, characterizes manifestation of fluctuations
in the rapidity space.
