References
- Didrik Espeland, Louis de Weerd & James B. Mercer. Health effects of voluntary exposure to cold water – a continuing subject of debate. International Journal of Circumpolar Health. 2022;81:1.
- Sebastian Kneipp. My Water-Cure Tested for More than 35 Years and Published for the Cure of Diseases and the Preservation of Health. Jos. Koesel Publisher, Kempten, Bavaria (3rd ed.) MDCCCXCIV.
- Ko Y. Sebastian Kneipp and the Natural Cure Movement of Germany: Between Naturalism and Modern Medicine. Uisahak. 2016;25(3):557–1.
- Kris Leonhardt and Patricia Hoffman. Service Above Self: St. Joseph’s Hospital School of Nursing. Wausau (Wisconsin): Midwest Storyteller Publishing; 2021.