@article{Feichtinger1992,
author = {Feichtinger, G. and Steinmann, G.},
title= {Immigration into a population with fertility below replacement level - The case of Germany},
year = {1992},
doi = {10.1080/0032472031000146236},
journal = {Population Studies},
volume = {46},
number = {2},
pages = {275--284},
}