1
by Breyer-Mayländer, Thomas
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

5
by Yigitcanlar, Tan
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

8
by Richter, Carola
Published 2021
Open Book Publishers

9
by Pütter, Judith Maja
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

10
Published 2017
OECD Publishing

11
Published 2001
OECD Publishing

12
Published 2001
OECD Publishing

13
Published 2011
OECD Publishing

16
Published 2015
OECD Publishing

19
Published 2022
OECD Publishing

20
by Pawlowska, Barbara
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute