Toni Zweifel (15 February 1938 – 24 November 1989) was
Swissengineer who patented several inventions. He founded and served as director of the Limmat Foundation,[1] a foundation that supports social projects all over the world with a majority of women as project beneficiaries.[2] He was a numerary member of the
Opus Dei.[3]
Agustín López Kindler, Given To Others. The Life of Toni Zweifel. Scepter Publishers 2020 ISBN 1594173990
Joan Carroll Cruz, Saints For the Sick. Heavenly Help For Those Who Suffer. TAN Books
Michael Jackson, Coincidences: Synchronicity, Verisimilitude, and Storytelling. (Chapter 'Chance Meeting') University of California Press 2021. ISBN 0520977017