44
Published 2022
OECD Publishing

46
by Chigbu, Uchendu Eugene
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute

47
by Yigitcanlar, Tan
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute

48
by Schwedes, Oliver
Published 2021
transcript Verlag

51
by Garrote, Luis
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute

52
by Wang, Huiyao
Published 2021
Springer Nature

53
by Douligeris, Christos
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute

54
by D'Adamo, Idiano
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute

55
Published 2015
OECD Publishing

56
Published 2017
OECD Publishing

57
Published 2017
OECD Publishing

58
by Kayser, Justus
Published 2016
Nomos Verlagsgesellschaft mbH & Co. KG