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Bernasconi, M.V. and Valsangiacomo, Claudio and Balmelli, T. and Péter, O. and Piffaretti, J.C. (1997) Tick zoonoses in the southern part of Switzerland (Canton Ticino): occurrence of Borrelia burgdorferi sensu lato and Rickettsia sp. European Journal of Epidemiology. pp. 209-215.
Bernasconi, M.V. and Valsangiacomo, Claudio and Balmelli, T. and Péter, O. and Piffaretti, J.C. (1996) Zoonosi da zecche nel Canton Ticino. Boll. Soc. Tic. Sci. Nat..