@article{Christensen2006,
author = {Christensen, K. and Herskind, A.M. and Vaupel, J.},
title= {Why Danes are smug: comparative study of life satisfaction in the European Union},
year = {2006},
doi = {10.1136/bmj.39028.665602.55},
journal = {British Medical Journal},
volume = {333},
number = {7582},
pages = {1289--1291},
}