Li Zhu Kostas Karatzas John Lee Urban Environmental Information Perception and Multimodal Communication: The Air Quality Example. 288-299 2008 COST 2102 School (Vietri) http://dx.doi.org/10.1007/978-3-642-00525-1_29 conf/cost/2008 db/conf/cost/cost2008.html#ZhuKL08