Claudio Silvestrin Lecture. Timeless Stone. Verona, Italy. << newsMarmomac 2019 Verona. Claudio Silvestrin lecture. Timeless Stone. 27 September 2019. << newsCarrara Archiday 2019 Verona. Claudio Silvestrin lecture. Timeless Stone. 27 September 2019. << newsMarmomac 2019 Verona. Claudio Silvestrin lecture. Timeless Stone. 27 September 2019.