Knapek, Magdalena. “Stimulation of Primary Functions in Speech Therapy and Orthodontics. Orthotropy – a Practical Approach. A Case Study”. Logopedia Silesiana 12, no. 2 (December 29, 2023): 1–28. Accessed March 13, 2026. https://journals.us.edu.pl/index.php/LOGOPEDIASILESIANA/article/view/16031.