  We investigate hadron attenuation in deep-inelastic lepton scattering off
complex nuclei in the kinematic regime of the HERMES experiment. Our transport
theoretical simulations reveal strong prehadronic final state interactions of
the reaction products with the surrounding nuclear medium early after the
initial photon-nucleon interaction has taken place. In this work we compare our
model results with the measured hadron multiplicity ratios for a Kr target at
HERMES and provide an extended discussion of the double-hadron attenuation
recently observed at HERMES.
