Rui Zhou 0002 Gerhard Schneider Location-Based Botany Guide: A Prototype of Web-Based Tracking and Guiding. 72-86 2009 MOBILWARE http://dx.doi.org/10.1007/978-3-642-01802-2_6 conf/mobilware/2009 db/conf/mobilware/mobilware2009.html#ZhouS09