Home News & Announcements Prof Isabelle Opitz, ESTS President, on behalf of the Board of Directors wishes you a Peaceful and Happy Christmas and a good New Year 2023 Prof Isabelle Opitz, ESTS President, on behalf of the Board of Directors wishes you a Peaceful and Happy Christmas and a good New Year 2023 22 December 2022 (Last updated: 22 Dec 2022 09:08) View other News Articles