1
Frey, Jörg
| Brill Academic Publishers |
2005
2
Frey, Jorg
| Walter De Gruyter |
2014
3
Frey, Jorg
| Walter De Gruyter GmbH |
1999
5
Frey, Jorg
| Cambridge University Press |
2008
7
Frey, Jörg
| |
2018
8
Christophersen, Alf
| T & T Clark |
2006