Mir, Meritxell (18 October 2011). "Swiss food pioneer dies at 95". The Local Switzerland. Archived from the original on 28 August 2023. Retrieved 31 August 2023.
Mir, Meritxell (18 October 2011). "Swiss food pioneer dies at 95". The Local Switzerland. Archived from the original on 28 August 2023. Retrieved 31 August 2023.