Szabat, P., J. Poleszak, M. Szabat, G. Boreński, M. Wójcik, and J. Milanowska. “Apitherapy – the Medical Use of Bee Products”. Journal of Education, Health and Sport, vol. 9, no. 8, Aug. 2019, pp. 384-96, https://apcz.umk.pl/JEHS/article/view/7321.