@article{Diener1999,
author = {Diener, E. and Suh, E.M. and Lucas, R.E. and Smith, H.L.},
title= {Subjective well-being: Three decades of progress},
year = {1999},
doi = {10.1037/0033-2909.125.2.276},
volume = {125},
number = {2},
pages = {276--302},
}