Wikipedia:Copyright problems/2021 June 28

28 June 2021

 * Herbert Friedman ([ history] · [ last edit] · rewrite) from https://web.archive.org/web/20070816143009if_/http://www.aps-pub.com/proceedings/1462/204.pdf. Foundational, CCI: Beatgr. MER-C 17:11, 28 June 2021 (UTC)
 * Pictogram voting delete.svg Article deleted due to copyright concerns. MER-C 16:59, 7 July 2021 (UTC)