@article {RN155,
	title = {Improving User Experience for Passenger Information Systems. Prototypes and Reference Objects},
	journal = {IEEE Transactions on Professional Communication},
	volume = {56},
	number = {2},
	year = {2013},
	pages = {120-137},
	doi = {10.1109/TPC.2013.2257211},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6524067},
	author = {Wirtz, S. and Jakobs, E.-M}
}
