1
Cyhoeddwyd: 1998
Superior document: Enthalten in Redesigning social security Tübingen, 1998 S. [373] - 377
2
Cyhoeddwyd: c2008.
Superior document: Munich lectures in economics
3
4
Cyhoeddwyd: [2010]
Superior document: Title is part of eBook package: De Gruyter Princeton University Press eBook-Package Backlist 2000-2013
5
Cyhoeddwyd: 1988
Superior document: Vorträge / Rheinisch-Westfälische Akademie der Wissenschaften : N, Natur-, Ingenieur- und Wirtschaftswissenschaften 357
6
7
Cyhoeddwyd: c2007.
Superior document: CESifo seminar series
Links: Cael y testun llawn
8
Cyhoeddwyd: c1983.
Links: Cael y testun llawn
9
Cyhoeddwyd: [2014]
Superior document: Title is part of eBook package: De Gruyter DGBA Philosophy 1990 - 1999
Links: Cael y testun llawn; Cael y testun llawn; Cover
10
Cyhoeddwyd: [2014]
Superior document: Title is part of eBook package: De Gruyter DGBA Social Sciences 1990 - 1999
Links: Cael y testun llawn; Cael y testun llawn; Cover
11
Cyhoeddwyd: [2011]
Superior document: Title is part of eBook package: De Gruyter Columbia University Press eBook-Package Backlist 2000-2013
Links: Cael y testun llawn; Cael y testun llawn; Cover
12
Cyhoeddwyd: [2019]
Superior document: Title is part of eBook package: De Gruyter DG Plus eBook-Package 2019
Links: Cael y testun llawn; Cael y testun llawn; Cover