1
Published 2015
OECD Publishing

3
Published 2017
OECD Publishing

4
by Pütter, Judith Maja
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

6
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

7
by Van Oel, Pieter
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

8
by Yigitcanlar, Tan
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

10
by Breyer-Mayländer, Thomas
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

12
by Hashemi, Shervin
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute

13
by Schwedes, Oliver
Published 2021
transcript Verlag

15
by Shen, Liyin
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute

16
by Shen, Liyin
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute

17
by Alpsancar, Suzana
Published 2023
Nomos Verlagsgesellschaft mbH & Co. KG

18
by Yang, Weixin
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute

19
by Gherghina, Ştefan Cristian
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute