Gesetz: DSGVO 20 
Swiss Data Alli­ance: Gui­de­line on data por­ta­bi­li­ty in Switzerland
Art. 29 Working Par­ty: Gui­de­lines on the GDPR updated (por­ta­bi­li­ty; data pro­tec­tion offi­cers; lead authority).
Art. 29 working group: three gui­de­lines on the GDPR