1
by Duttge, Gunnar
Published 2010
Universitätsverlag Göttingen

2
by Beck, Matthias
Published 2004
Schöningh

4
by Berg, Rigmor C., Denison, Eva, Fretheim, Atle
Published 2010
Norwegian Knowledge Centre for the Health Services

5
by Altmeppen, Klaus-Dieter
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

7
by Voigt, Friedemann
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

8
by Petts, Richard J.
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

9
by Büssing, Arndt
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute