KUBIAK, Karolina, KWIATKOWSKA, Klaudia, LAMTYCH, Martyna and BADIUK, Nataliia. Methods for assessing selected disorders of the autonomic nervous system in neurodegenerative diseases. Journal of Education, Health and Sport. Online. 24 December 2018. Vol. 8, no. 12, pp. 1045-1051. [Accessed 23 January 2025].