Sydoruk, Nadiya O, and Walery Zukow. “Comparative Investigation of Immediate Effects on Neuro-Endocrine-Immune Complex of Bioactive Water Naftussya from Layers Truskavets’, Pomyarky and Skhidnyts’a. Communication 1. Generic Effects”. Journal of Education, Health and Sport, vol. 6, no. 8, Aug. 2016, pp. 85-101, https://apcz.umk.pl/JEHS/article/view/3734.