1
Published 2009
National Academies Press

2
by Nichols, Eve K.
Published 1991
National Academy Press

3
by Pols, Jeannette
Published 2012
Amsterdam University Press

4
by Pool, Robert
Published 2016
National Academies Press

5
Published 2017
Ubiquity Press

6
by Matiaske, Wenzel
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG