The happiness paradox: your friends are happier than you. - Johan Bollen; Bruno Gonçalves; Ingrid van de Leemput; Guangchen Ruan (EPJ Data Sci., 2017)

Does putting your emotions into words make you feel better? Measuring the minute-scale dynamics of emotions from online data. - Rui Fan; Ali Varamesh; Onur Varol; Alexander T. J. Barron; Ingrid van de Leemput; Marten Scheffer; Johan Bollen (CoRR, 2018)