@book {9783800122431, title = "Orchideen pflegen", author = "Röllke, Lutz", isbn = "9783800122431", keywords = "Garten, Einsteiger", url = "http://www.content-select.com/index.php?id=bib_view&ean=9783800122431", url = "https://content-select.com/de/portal/media/view/519cc6b0-1550-4ebe-966a-29105dbbeaba", publisher = "Verlag Eugen Ulmer", language = "ger", }