Die Kur - Kraft für Körper, Seele und den Alltag

1998, Comparison of responses of men to immersion in circulating water at 40.0 and 41.5 degrees C.

Allison TG, Reger WE

Aviat Space Environ Med. 1998 Sep;69(9):845-50

https://www.ncbi.nlm.nih.gov/pubmed/9737754