1. Hörold, S., Mayas, C., Krömker, H.: Identifying the information needs of users in public transport. In: Stanton, N. (ed.) Advances in Human Aspects of Road and Rail Transportation, pp. 331–340. CRC Press, Boca Raton (2012)
2. Wirtz, S., Jakobs, E.-M.: Improving user experience for passenger information systems. prototypes and reference objects. IEEE Trans. Prof. Commun. 56(2), 120–137 (2013). doi:
10.1109/TPC.2013.2257211
3. Hörold, S., Mayas, C., Krömker, H.: User-oriented development of information systems in public transport. In: Anderson, M. (ed.) Contemporary Ergonomics and Human Factors 2013, pp. 160–167. CRC Press, Boca Raton (2013)
4. Payeras-Capellà, M.M., Mut-Puigserver, M., Ferrer-Gomila, J.-L., Castellà-Roca, J., Vives-Guasch, A.: Electronic ticketing: requirements and proposals related to transport. In: Navarro-Arribas, G., Torra, V. (eds.) Advanced Research in Data Privacy Studies in Computational Intelligence, vol. 567, pp. 285–301. Springer, Heidelberg (2015)
5. Hörold, S., Mayas, C., Krömker, H.: Passenger needs on mobile information systems – field evaluation in public transport. In: Stanton, N. (ed.) Advances in Human Aspects of Transportation: Part III, AHFE Conference, pp. 115–124. (2014)