%0 Book Section %1 PaWaC09 %A Parwoll, Moritz %A Wagner, Ralf %B Aging Society and its Implications on Service Marketing Approaches in the Hospitality, Tourism and Transport %C Bad Honnef %D 2011 %E Bornemeyer, Claudia %E Schneider, Jürgen %I Bock %K 2011 Direktmarketing_im_Wandel contributions myown %P 19-40 %T Direct Marketing for Best-Agers: In Dialogue with Challenging Customers