@book { DieInseldesgeheimenGlcks, title = "Die Insel des geheimen Glücks", subtitle = "Ein Cheltenham-Roman - Band 7", author = "Zoë {Barnes} and Margarethe {van Pée}", year = "2021", publisher = "dotbooks Verlag", address = "München, Germany", url = "https://www.dotbooks.de/document/998025" }