"This book originates from a series of papers presented at a workshop on "Reform processes and policy change ...", held at the Mannheim Centre for European Social Research (MZES), Germany, in May 2009" -- Acknowledgements page.
Reform processes and policy change : veto players and decision-making in modern democracies. ISBN 9781441958082. Published by Springer in 2010. Publication and catalogue information, links to buy online and reader comments.