@inbook{81d36867fca348f8b3085f90a40192b9,
title = "The Development of the WTO interest group population. Exploring density, stability and diversity over time",
author = "M. Hanegraaff and J. Beyers and C.H.J.M. Braun",
year = "2012",
language = "English",
isbn = "9780230284432",
series = "Interest groups, advocacy and democracy series",
publisher = "Palgrave Macmillan",
pages = "180--200",
editor = "D. Halpin and G. Jordan",
booktitle = "The scale of interest organization in democratic politics",
}