  Bose-Einstein correlations are studied in the framework of a class of
independent particle production models. This generalizes the studies for a
variety of models proposed previously. It is shown that the Bose-Einstein
correlations lead for this class of models to Einstein's condensation at
sufficiently high density. They also enhance unusual charge distributions and
may explain the centauro and anticentauro events reported by cosmic ray
physicists. For typical models the correlations cause a shrinking of the
momentum distribution of the produced identical particles and an apparent
shrinking of the production region.
