RECENT RESULTS ON BOSE-EINSTEIN CORRELATIONS, FRAGMENTATION FUNCTIONS AND EVENT SHAPES IN ep DIS

Bose-Einstein correlations are studied with respect to two-particle correlation functions at small distances and possible differences between diffractive and non-diffractive events. The second part deals with the dependence of charged particle fragmentation functions on the four-momentum transfer squared. The observed scaling violations are compared with predictions of pQCD. In the last section the energy dependence of the mean values of event shape variables is investigated. Applying power corrections to account for hadronisation effects, fits to second order pQCD calculations are carried out.