Pusterla, N., Leutenegger, C. M., Huder, J. B., Weber, R., Braun, U., & Lutz, H. (1999). Evidence of the Human Granulocytic Ehrlichiosis Agent in Ixodes ricinus Ticks in Switzerland. American Society for Microbiology.

Pusterla, Nicola, Christian M. Leutenegger, Jon B. Huder, Rainer Weber, Ueli Braun, och Hans Lutz. Evidence of the Human Granulocytic Ehrlichiosis Agent in Ixodes Ricinus Ticks in Switzerland. American Society for Microbiology, 1999.

Pusterla, Nicola, et al. Evidence of the Human Granulocytic Ehrlichiosis Agent in Ixodes Ricinus Ticks in Switzerland. American Society for Microbiology, 1999.