@inproceedings{P111.027, author={De Potter, Pieterjan and Billiet, Christophe and Poppe, Chris and Stubbe, Brecht and Verstockt, Steven and Lambert, Peter and Van de Walle, Rik}, title={Available seat counting in public rail transport}, booktitle={Proceedings of the 29th progress in electromagnetics research symposium (PIERS)}, year={2011}, pages={1294-1298}, publisher={The Electromagnetics Academy}, address={Cambridge, MA, USA}, }