In the newsletter no. 5 of 2022, you fill find information about the activities of the WG1, WG2, WG3 and WG4. Moreover, there are news about the STSMs and VMs which are assigned this year to COST members and Uktraine researchers. Upcoming special sesssions and roundtalbes are also listed in the newsletter. In addition, news on publications and forthcoming papers are available in the newsletter.
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