2
   
3
Published: Dortmund, Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (BAuA), 2016
   
4
Published: Deventer [u.a.], Kluwer Law and Taxation Publ., 1991
   
5
Published: Frankfurt/Main, ISP-Verlag, 1982
   
7
   
9
   
10
   
12
   
13
   
16
Published: Köln, Deutscher Instituts-Verlag, 1975
   
17
Published: Freiburg im Breisgau, Haufe, 1977
   
18
   
19
   

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