Hauri, Stephan (21 May 2014). "Drei für einen Liter" [Three for a liter] (PDF). Automobil Revue (in German) (21). Bern, Switzerland: MoMedia AG. Archived(PDF) from the original on 26 May 2015. Retrieved 26 May 2015.
Hauri, Stephan (21 May 2014). "Drei für einen Liter" [Three for a liter] (PDF). Automobil Revue (in German) (21). Bern, Switzerland: MoMedia AG. Archived(PDF) from the original on 26 May 2015. Retrieved 26 May 2015.