1 Other Authors: “...Ring, Gerhard...”

2 Other Authors: “...Ring, Gerhard...”

3 Other Authors: “...Ring, Gerhard...”

4 Other Authors: “...Ring, Gerhard...”

5 Other Authors: “...Ring, Gerhard...”

6 Other Authors: “...Ring, Gerhard...”

7 Other Authors: “...Ring, Gerhard...”

8 Other Authors: “...Ring, Gerhard...”

9 Other Authors: “...Ring, Gerhard...”