1
Published 2010
OECD Publishing

2
Published 2017
OECD Publishing

3
Published 2017
OECD Publishing

4
Published 2015
OECD Publishing

5
Published 2015
OECD Publishing

9
Published 2017
OECD Publishing

10
by Matiaske, Wenzel
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

11
Published 2013
OECD Publishing

12
Published 2017
OECD Publishing

13
by Pütter, Judith Maja
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

15
by Asami, Yasushi
Published 2021
Springer Nature

16
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

17
by Van Oel, Pieter
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

18
by Verhoef, Leendert
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

19
by Yigitcanlar, Tan
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute