@book { InnovationBehaviorofOlderConsumers, title = "Innovation Behavior of Older Consumers", author = "Armin {Tank}", year = "2014", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-03180-5", url = "https://www.peterlang.com/document/1047541" }