Noël, Lise-Marie, and Roberta Mura. “Images Des mathématiques Chez Des Futurs maîtres”. Canadian Journal of Education Revue Canadienne De l’éducation, vol. 24, no. 3, Sept. 1999, pp. 296–310, https://journals.sfu.ca/cje/index.php/cje-rce/article/view/2759.