Scheibling-Sève, Calliste, Katarina Gvozdic, Elena Pasquinelli, and Emmanuel Sander. “Enhancing Cognitive Flexibility Through a Training Based on Multiple Categorization: Developing Proportional Reasoning in Primary School”. Journal of Numerical Cognition 8, no. 3 (November 16, 2022): 443-472. Accessed April 26, 2024. https://jnc.psychopen.eu/index.php/jnc/article/view/7661.