Vamvakoussi, Xenia, Konstantinos P. Christou, and Stella Vosniadou. “Bridging Psychological and Educational Research on Rational Number Knowledge”. Journal of Numerical Cognition 4, no. 1 (June 7, 2018): Article e5785. Accessed May 10, 2026. https://jnc.psychopen.eu/index.php/jnc/article/view/5785.