DRABCZYK, Mateusz, KAROŃ, Karolina, ZYGMUNT, Anna, KAROŃ, Łukasz, PEDRYCZ, Emilia, GRABOWSKI, Wojciech, PEDRYCZ, Daria, DRAPAŁA, Grzegorz and KAROŃ, Sławomir. Tryptophan: The Molecular Key to Unlocking Superior Sleep, Mood Enhancement and Athletic Recovery. Journal of Education, Health and Sport. Online. 3 March 2025. Vol. 79, p. 58156. [Accessed 8 April 2025]. DOI 10.12775/JEHS.2025.79.58156.