@book{ BA89119051, author = "Thomas, Lutz", title = "Der Einfluß von Kindern auf Produktpräferenzen ihrer Mütter", publisher = "Duncker & Humblot", year = "1983", series = "Schriften zum Marketing", number = "Bd. 16", URL = "https://ci.nii.ac.jp/ncid/BA89119051" }