2
by Breuer, Clemens
Published 1995
Schöningh

4
by Ereira, Alan
Published 1990
British Broadcasting Corporation (BBC)

5
Published 2017
AOSIS

6
by Metress, Christopher
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

7
by Rogowska-Stangret, Monika
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

8
by Peter Iver Kaufman
Published 2013
MDPI - Multidisciplinary Digital Publishing Institute

9
by Nugteren, Albertina
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

10
by Noreen Herzfeld
Published 2017
MDPI - Multidisciplinary Digital Publishing Institute

11
by Wineburg, Robert
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

12
by Wickman, Matthew
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

13
by Haynes, Jeffrey
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

14
by Peters, Greg
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute