Sauerwein R, Bisseling J, Horrevorts A (1993). «Septic abortion associated with Campylobacter fetus subspecies fetus infection: case report and review of the literature». Infection. 21 (5): 331–3. PMID8300253. doi:10.1007/BF01712458.CS1-vedlikehold: Flere navn: forfatterliste (link)
Sauerwein R, Bisseling J, Horrevorts A (1993). «Septic abortion associated with Campylobacter fetus subspecies fetus infection: case report and review of the literature». Infection. 21 (5): 331–3. PMID8300253. doi:10.1007/BF01712458.CS1-vedlikehold: Flere navn: forfatterliste (link)