@article{Klüsener2013,
author = {Klüsener, S. and Perelli-Harris, B. and Sánchez Gassen, N. },
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},
}