These proceedings contain the contributions to the YRS2023, from 14 different European countries.
From the 34 full paper contributions to the seminar by the Young Researchers, some are made available to the public in these proceedings. Most contributions are contained in the proceedings in form of a full paper or in the form of the respective presentation. Some are contained in the two formats. A unique DOI (Digital Object Identifier) has been assigned to each submitted paper and to each presentation (when available).