Susino, M., and E. Schubert. “Negative Emotion Responses to Heavy-Metal and Hip-Hop Music With Positive Lyrics”. Empirical Musicology Review, vol. 14, no. 1-2, Nov. 2019, pp. 2-15, https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/EMR/article/view/6376.