@article{publication-4771,
	author={Frey, Bruno S},
	doi={10.1126/science.1201060},
	issn={0036-8075},
	journal={Science},
	number=6017,
	pages={542-543},
	publisher={American Association for the Advancement of Science (AAAS)},
	title={Happy people live longer},
	volume=331,
	year=2011,
}