Hanć, Tomasz, and Ulrike Ravens-Sieberer. “The Adaptation Process and Preliminary Psychometric Evaluation of the Polish Version of Kiddo-KINDL Questionnaire”. Anthropological Review 82, no. 3 (September 30, 2019): 287–295. Accessed December 9, 2025. https://www.czasopisma.uni.lodz.pl/ar/article/view/10771.