The conference proceedings has been published in
M. De Petris, A. Ferragamo and F. Mayet (Eds.) Observing the mm Universe with the NIKA2 camera (mm Universe @ NIKA2), Rome (Virtual), Italy, June 28-July 2, 2021, EPJ Web of Conferences 257 (2022)
https://www.epj-conferences.org/articles/epjconf/abs/2022/01/contents/contents.html
The conference has been short-listed to be proposed for presentation in the 'Highlight' section of the EPJ portal, see EPJ
The European Physical Journal Web of Conferences is an open access journal: http://www.epj-conferences.org
Peer Reviewing
All papers have been peer-reviewed.