@article{Klüsener2014,
author = {Klüsener, S. and Goldstein, J.R.},
title= {A long-standing demographic east-west divide in Germany},
year = {2014},
doi = {10.1002/psp.1870},
journal = {Population, Space and Place},
volume = {22},
number = {1},
pages = {5−22},
}