1. Voluntary agreements as a form of deregulation? The Dutch experience;Liefferink,1998
2. Driving small- and medium-sized enterprises towards environmental management;de Bruijn,2000
3. Voluntary environmental initiatives and sustainable industry;Paton,2002
4. Environmental agreements – environmental effectiveness;European Environment Agency,1997
5. Voluntary agreements – trick or treat?;Bizer;European Environment,1999