D. Tall e S. Vinner, Concept image and concept definition in mathematics with particular reference to Limits and continuity, Educational Studies in Mathematics 12 (1981), 151–169
D. Tall e S. Vinner, Concept image and concept definition in mathematics with particular reference to Limits and continuity, Educational Studies in Mathematics 12 (1981), 151–169
D. Tall e S. Vinner, Concept image and concept definition in mathematics with particular reference to Limits and continuity, Educational Studies in Mathematics 12 (1981), 151–169