KROWIG Version 1.0: Interfacing KRONOS and HERWIG or Higher Order   Electromagnetic Radiative Corrections at HERA with Hadronic Final States
  This manual describes version 1.0 of the Monte Carlo event generator KROWIG for deep inelastic lepton hadron scattering at HERA. KROWIG combines the implementation of QED radiative corrections in KRONOS with the QCD parton showers and cluster fragmentation of HERWIG. 
Thorsten Ohl