@book { EinBeitragzurSchlieungdesAttitudeBehaviourGapsdurchSustainableMarketing, title = "Ein Beitrag zur Schließung des Attitude-Behaviour Gaps durch Sustainable Marketing", author = "Alina {Spanuth}", year = "2018", publisher = "Diplom.de", address = "Hamburg, Deutschland", url = "https://m.diplom.de/document/436343" }