@article{Kievit2015, author = "Rogier Kievit", title = "{Fried & Kievit data and code}", year = "2015", month = "9", url = "https://figshare.com/articles/dataset/Fried_amp_Kievit_data_and_code/1551986", doi = "10.6084/m9.figshare.1551986.v2" }