Copernicus Publications and the Coordinating editors of PB thank the following colleagues very much for their work in reviewing the manuscripts published in the journal volume 6, 2019.
- David Abbott
- Andie Ang
- Sarah Elton
- Spartaco Gippoliti
- Tony Goldberg
- Patrick Hanley
- Hannes Klump
- Luca Massacesi
- Roland Plesker
- Christian Roos
- Marina Scheumann
- Stefan Schlatt
- Che Serguera
- Rebecca Smith
- Julien Vezoli
- Florence Wianny