@article{Klüsener2013,
author = {Klüsener, Sebastian and Perelli-Harris, Brienna and Sánchez Gassen, Nora},
title= {Spatial Aspects of the Rise of Nonmarital Fertility Across Europe Since 1960: The Role of States and Regions in Shaping Patterns of Change},
year = {2013},
doi = {10.1007/s10680-012-9278-x},
journal = {European Journal of Population },
volume = {29},
number = {2},
pages = {137--165},
}