  The production and structure of &#923; hypernuclei are investigated in field
theoretical models. The production in coherent p+A reactions is investigated by
means of a resonance model. Results of exploratory calculations for associated
strangeness production are presented for proton reactions on 40Ca. The target
single particle wave functions are obtained from DDRH theory with density
dependent Dirac-Brueckner meson-baryon vertices. The dependence of the
in-medium vertices on density is discussed.
