Aliberto Caforio
Adam Feather
Rôzni autori (editori)
Jan Brucker
Lynda Edwards
Bettina Müller
School Days Publishing
Brita Kaiser-Deutrich
Gloria Bosch
Nadine Bauer
Silke Hilpert
Cornelia Klepsch
Andrea Görnitz
Anneliese Hoenack
Franz Eisentraut
Walter Funken
Generuje redakčný systém BUXUS CMS spoločnosti ui42.