Curtis, Evan T., Matthew G. Huebner, and Jo-Anne LeFevre. “The Relationship Between Problem Size and Fixation Patterns During Addition, Subtraction, Multiplication, and Division”. Journal of Numerical Cognition 2, no. 2 (August 5, 2016): 91-115. Accessed March 28, 2024. https://jnc.psychopen.eu/index.php/jnc/article/view/5693.