1
by Held, Gilbert
Published 2012
J. Wiley & Sons

2
by Flügge, S.
Published 1964
Springer Berlin Heidelberg

3
by Flügge, S.
Published 1958
Springer Berlin Heidelberg

4
Published 2014
Deutsches Institut für Normung e.V.

5
by Schneider, Hatto
Published 2006
Springer Paris