Havigerová JM, Loudová I, Košek-Bartošová I, Kocourková K, Podubecká D. Keeping the line in transition years: Comparison of preschoolers and nine graders. IJIRE [Internet]. 2023 Jun. 16 [cited 2024 Nov. 23];10(1):37-45. Available from: https://un-pub.eu/ojs/index.php/IJIRE/article/view/8959