| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Formal and Informal Work: The Hidden Work Regime in Europe | 978-O-415-96469-2 (O-415-96469-5) | 2009 | Birgit Pfau-Effinger · Per H. Jensen |
Lasse Folkersen · Liesa Folkerts · Liz Folger · Luigi Fallacara