2
by Yigitcanlar, Tan
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

3
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

5
by van Hoof, Joost
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute

6
by Batra, Kavita
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute