Bekker, C. P. J., Vink, D., Lopes Pereira, C. M., Wapenaar, W., Langa, A., & Jongejan, F. (2001). Heartwater (Cowdria ruminantium Infection) as a Cause of Postrestocking Mortality of Goats in Mozambique. American Society for Microbiology.

Bekker, Cornelis P. J., Daan Vink, Carlos M. Lopes Pereira, Wendela Wapenaar, Afonso Langa, i Frans Jongejan. Heartwater (Cowdria Ruminantium Infection) As a Cause of Postrestocking Mortality of Goats in Mozambique. American Society for Microbiology, 2001.

Bekker, Cornelis P. J., et al. Heartwater (Cowdria Ruminantium Infection) As a Cause of Postrestocking Mortality of Goats in Mozambique. American Society for Microbiology, 2001.