@inbook{Kohli2005,
author = {Kohli, M. and Künemund, H. and Lüdicke, J.},
title= {Family Structure, Proximity and Contact},
year = {2005},
editor = {Börsch-Supan, A.},
booktitle = {Health, Ageing and Retirement in Europe. First results from the Survey of Health, Ageing and Retirement in Europe},
address = {Mannheim},
publisher = {Mannheim Research Institute for the Economics of Aging},
pages = {164--170},
}