Epistemonikos

23. October 2021

By Thomas Nordhausen

BASE

1. November 2021

By Thomas Nordhausen

CORDIS

6. November 2021

By Thomas Nordhausen

Fachportal Pädagogik

13. November 2021

By Thomas Nordhausen

International Guidelines Library

16. November 2021

By Thomas Nordhausen

KVK

16. November 2021

By Thomas Nordhausen

LILACS

17. November 2021

By Thomas Nordhausen

PDQ-Evidence

25. November 2021

By Thomas Nordhausen

SNCTP

5. December 2021

PubPsych

10. December 2021

GoTriple

5. June 2023

SciELO

24. July 2023

Dialnet

27. September 2023