Voet, Donald
[Author];
Voet, Judith G.
[Author];
Pratt, Charlotte W.
[Author]
;
Häcker, Bärbel
[Translator];
Asperger, Otmar
[Translator];
Eggelkraut-Gottanka, Regula von
[Translator];
Horstmann, Claudia
[Translator];
Koglin, Norman
[Translator];
Krauss, Ulrike
[Translator]