  Between the initial excitation of nucleons by the passing throughout each
other and the final cascading of newly created hadrons there should be
considered one more step. We call it the second step cascading process. It acts
as an interaction of wounded nucleon from one nucleus with another nucleon from
the same nucleus. This mechanism leads to the significant increase on the
inelasticity for nuclei collisions without changing the hadron-hadron
interaction characteristics.
