Published at newspaper “A Tribuna Piracicabana”, Piracicaba, São Paulo, 14 de fevereiro de 2023.

Obituary to the great humanist Cláudio Willer, São Paulo, February 6, 2023.

Article published on the Vermelho.org website, São Paulo, January 13, 2021.

Article published on the website Vermelho on December 10, 2020, São Paulo, Brazil.

(9.6.1930 – 16.9.2020) – a familiar perspective.