Haspelmath, Martin. “Universals of Causative and Anticausative Verb Formation and the Spontaneity Scale”. Lingua Posnaniensis 58, no. 2 (December 1, 2016): 33–63. Accessed February 17, 2025. https://pressto.amu.edu.pl/index.php/linpo/article/view/linpo-2016-0009.