About the proceedings, all papers will be published exclusively online and will be freely accessible to all immediately upon publication. They will be the subject of a virtual collection within those of our publisher, De Gruyter, which will allow access, if necessary, to the entire volume of proceedings. Everyone will therefore be able to distribute their paper largely and free of charge, and every paper will bear a specific DOI which will ensure its correct referencing.

In view of the difficult health context, we have decided to extend the deadline to April 30, which is a strict deadline.

All the recommendations are on the page https://meso2020.sciencesconf.org/resource/page/id/17. To sum up, we recommand a length of between 4,000 and 10,000 words, excluding the bibliography and figure captions, and a maximum of 15 figures and tables.Remember too about the possibility of attaching online voluminous additional data: photographies, tables, inventories, 3D models, etc.