van de Ven, Niels (2016). “Envy and Its Consequences: Why It Is Useful to Distinguish between Benign and Malicious Envy”. Social and Personality Psychology Compass. 10 (6): 337–349. doi:10.1111/spc3.12253.
Lange, Jens; Crusius, Jan; Weidman, Aaron. “The Painful Duality of Envy: Evidence for an Integrative Theory and a Meta-Analysis on the Relation of Envy and Schadenfreude”. PMID29376662. Chú thích journal cần |journal= (trợ giúp)