The Proceedings of the First Symposium in 2022 are published as Volume 1 in Athena Transactions in Mathematical and Physcial Sciences. Open Access, Use this link https://www.athena-publishing.com/series/atmps/issbg-22
The Proceedings of the Second Symposium in 2023 are published as Volume 1 in the series Proceedings of ISSBG, Open access. Click on the green cover on the right and click on the upper arrow.