The application of information theory approach (both in its extensive and
nonextensive versions) to high energy multiparticle processes is discussed and
confronted with experimental data on e+e- annihilation processes, pp and
\bar{p}p scatterings and heavy ion collisions.Comment: 6 pages - contribution to International Workshop on: Trends and
Perspectives in Extensive and Non-Extensive Statistical Mechanics (in Honour
to the q-60th Birthday of Constantino Tsallis) November 19-21, 2003, Angra
dos Reis, Brazil Small corrections added. To be published in Physica A (2004
