raimund.wildner@gfk-verein.org
christine.kittinger@gfk-verein.org
tim.bosenick@gfk.com
© 2015 Raimund Wildner, Christine Kittinger-Rosanelli, Tim Bosenik, published by Nuremberg Institute for Market DecisionsThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.