QCD coherence effects in initial state radiation at small x in deep in
elastic scattering in HERA kinematics are studied with the help of the
Monte Carlo model SMALLX. Theoretical assumptions based on the CCFM e
volution equation are reviewed and the basic properties of the partoni
c final states are investigated. The results are compared with those o
btained in the conventional DGLAP evolution scheme. (C) 1998 Elsevier
Science B.V.