Affiliation: | (1) Department of Methodology and Statistics, Faculty of Social Sciences, Utrecht University, P.O. Box 80.0140, 3508 TC, Utrecht, The Netherlands;(2) Institute of Information and Computing Sciences, Utrecht University, P.O. Box 80.089, 3508 TB, Utrecht, The Netherlands;(3) Zuse Institute Berlin (ZIB), Takustrasse 7, D-14195, Berlin-Dahlem, Germany |