  A thorough verification of the distinct differences in the properties of
quark and gluon jets is considered as one of the most instructive tests of the
basic ideas of QCD. In the real life experiments such a comparison appears to
be quite a delicate task and various subtle issues require further theoretical
efforts. In this paper we discuss in detail the possibility to extract the
theoretically adequate information from the particle multiplicity patterns in
three-jet events in e+e- annihilation.
