1
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

2
by Rittmann, Günter
Published 2014
Nomos Verlagsgesellschaft mbH & Co. KG

3
by van Hoof, Joost
Published 2021
MDPI - Multidisciplinary Digital Publishing Institute

4
by Batra, Kavita
Published 2022
MDPI - Multidisciplinary Digital Publishing Institute