1
by Stalder, Felix
Published 2012
innsbruck university press

2
Published 2002
National Academies Press

4
by Hirsch-Kreinsen, Hartmut
Published 2015
Nomos Verlagsgesellschaft mbH & Co. KG

5
by Leventakis, Georgios
Published 2018
Springer

6
by Leventakis, George
Published 2018
Springer