1
by Kent R. Kerley
Published 2015
MDPI AG - Multidisciplinary Digital Publishing Institute

2
by Jonsen, Albert R.
Published 1993
National Academy Press

3
by Voigt, Friedemann
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Altmeppen, Klaus-Dieter
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG