Gesa, Frömming. "Ennui." The Routledge Encyclopedia of Modernism. : Taylor and Francis, 2016. Date Accessed 3 Dec. 2023 https://www.rem.routledge.com/articles/ennui. doi:10.4324/9781135000356-REM1154-1
Gesa, F.(2016). Ennui. In The Routledge Encyclopedia of Modernism. : Taylor and Francis. Retrieved 3 Dec. 2023, from https://www.rem.routledge.com/articles/ennui. doi:10.4324/9781135000356-REM1154-1
Gesa, F. 2016, 'Ennui' in Routledge Encyclopedia of Modernism, Taylor and Francis, viewed 3 December 2023, <https://www.rem.routledge.com/articles/ennui>. doi:10.4324/9781135000356-REM1154-1