摘要：The 13 th EDM Conference was held in fully online from July 10 to July 13, and for the sixth time it held a Journal track which this year was edited by Michel Desmarais and Agathe Merceron. The Journal track allows papers submitted to JEDM to be presented at the conference. A summary is available in the proceedings, and the full text is published in the Journal. The Journal track received 8 submissions and 2 of them made it to the final stage of the special issue for journal publication. We are pleased to publish these papers in this issue.
