1. Westphal O, Westphal U, Sommer T. The history of pyrogen research. In: Schlessinger D, ed. Microbiology-1977. Washingtion, DC: American Society of Microbiology, 1977, pp. 221–238.
2. Rietschel ET, Westphal O. Endotoxin: historical perspectives. In: Brade H, Opal SM, Vogel SN, Morrison DC, eds. Endotoxin in Health and Disease. Basel: Marcel Dekker, Inc., 1999, pp. 1–30.
3. Von Bergmann E. Schwefelsaures Sepsin. Centralbl Med Wissensch 1868;32:497–498.
4. Von Bergmann E. Zur Lehre von der putriden Intoxikation. Dtsch Z Chir 1872;1:373–398.
5. Parnas J. Peter Ludwig Panum: great Danish pathologist and discoverer of endotoxin. Dan Med Bull 1976;23:143–146.