File:Michel Rolle.jpgDescriptionMichel Rolle.jpg English: Michel Rolle (1652-1719) portrait. Author unknown. Català: Retrat de Michel Rolle (1652-1719) d'autor desconegut
File:Stick-on-moxa-rolls-japan.jpgfollowing license: English author name string: WolfgangMichel URL: https://commons.wikimedia.org/wiki/user:WolfgangMichel Wikimedia username: WolfgangMichel