@article{Tomassini2004,
author = {Tomassini, C. and Kalogirou, S. and Grundy, E. and Fokkema, T. and Martikainen, P. and Broese van Groenou, M. and Karisto, A.},
title= {Contacts between elderly parents and their children in four European countries: Current patterns and future prospects},
year = {2004},
doi = {10.1007/s10433-004-0003-4},
journal = {European Journal of Ageing},
volume = {1},
number = {1},
pages = {54--63},
}