- Boris Glavic, Vanessa Braganholo, David Koop, editors, Provenance and Annotation of Data and Processes - 8th and 9th International Provenance and Annotation Workshop, IPAW 2020 + IPAW 2021, Virtual Event, July 19-22, 2021, Proceedings. Volume 12839 of Lecture Notes in Computer Science, Springer, 2021.