BOČKOVÁ, Veronika; PAVLOVIČOVÁ, Gabriela; RYBANSKÝ, Ľubomír. Identification of Problematic Items and Analysis of Distractors of the van Hiele Geometry Test. International Journal of Instruction, [S. l.], v. 19, n. 1, p. 401–418, 2026. DOI: 10.29333/iji.2026.19120a. Disponível em: https://e-iji.net/ats/index.php/pub/article/view/865. Acesso em: 8 jan. 2026.