DFZ00b Dehnert:2000:MPE DFZ00a Dehnert:2000:WMP Deh01a Dehnert:2001:ECB Deh01 Dehnert:2001:FSS DeRi01 Dehnert:2001:RSB DDGJ00a Derks:2000:CAS DDGJ01b Derks:2001:CAS