Weidmann, R, Chopik, W J, Ackerman, R A, Allroggen, M, Bianchi, E C, Brecheen, C, Campbell, W K, Gerlach, T M, Geukes, K, Grijalva, E, Grossmann, I, Hopwood, C J, Hutteman, R, Konrath, S, Küfner, A C P, Leckelt, M, Miller, J D, Penke, L, Pincus, A L, Renner, K-H, Richter, D, Roberts, B W, Sibley, C G, Simms, L J, Wetzel, E, Wright, A G C & Back, M D 2023, ' Age and gender differences in narcissism: A comprehensive study across eight measures and over 250,000 participants ', Journal of Personality and Social Psychology, vol. 124, no. 6, pp. 1277-1298 . https://doi.org/10.1037/pspp0000463