@article{Liu2008,
author = {Liu, L.J. and Guo, Q.},
title= {Life satisfaction in a sample of empty-nest elderly: A survey in the rural area of a mountainous county in China},
year = {2008},
doi = {10.1007/s11136-008-9370-1},
volume = {17},
number = {6},
pages = {823--830},
}