1. Anusic , I. Yap , C. Y. Lucas , R. E. 2013 Testing set-point theory in a Swiss national sample: Reaction and adaptation to major life events Unpublished manuscript
2. Life satisfaction across the lifespan: Findings from two nationally representative panel studies;Baird;Social Indicators Research,2010
3. Social support and adaptation to widowhood;Bankoff;Journal of Marriage and Family,1983
4. Bates , D. Maechler , M. 2010 lme4: Linear mixed-effects models using S4 classes. R package version 0.999375-35 http://cran.r-project.org/package=lme4