  We address mixing of different baryonic states in hypernuclei and formation
of strange nuclei of various kinds. First, production of neutron-rich Lambda
hypernuclei by the (pi-,K+) reaction is considered, and one-step production via
baryonic admixtures in the final as well as in the initial state is discussed.
Then, the Lambda Lambda - Xi N mixing in p shell Lambda Lambda hypernuclei
exemplified by $^{12}_{\Lambda\Lambda}$Be is studied. The last topic is devoted
to production of Theta pentaquark nuclei (pentanuclei). We suggest a type of
reactions with recoilless Theta production.
