4
Published 2013
ISO Copyright Office

5
Published 2013
ISO Copyright Office

7
Published 2015
ISO Copyright Office

8
Published 1966
Deutsches Institut für Normung e.V.

12
Published 2016
ISO Copyright Office

16
Published 2011
ISO Copyright Office

17
Published 2017
Deutsches Institut für Normung e.V.

18
Published 2008
ISO Copyright Office

19
Published 2006
Deutsches Institut für Normung e.V.

20
Published 2017
Deutsches Institut für Normung e.V.