On totally ordered groups, and K0.- Semiprime crossed products.- Biserial rings.- The state space of KO of a ring.- Simple noetherian rings — The zalesskii-neroslavskii examples.- Anneaux de polynomes semi-hereditaires.- Lower K-theory, regular rings and operator algebras — A survey.- Principal ideal theorems.- Modules over the cyclic group of prime order.- Remarks on the projective dimension of ?-unions.- Actions de groupes et anneaux reguliers injectifs.- K2 of some truncated polynomial rings.- Is the brauer group generated by cyclic algebras?.- K-theory of noetherian group rings.- The cancellation problem for projective modules and related topics.- Modules over fully bounded noetherian rings.