2nd SIGSPATIAL ACM GIS international workshop on security and privacy in GIS and LBS 2009 : (SPRINGL 2009) : held in conjunction with ACM SIGSPATIAL GIS 2009 : Seattle, Washington, USA : 3 November 2009. : Nov 2009, Seattle, WA.
2nd SIGSPATIAL ACM GIS international workshop on security and privacy in GIS and LBS 2009 : (SPRINGL 2009) : held in conjunction with ACM SIGSPATIAL GIS 2009 : Seattle, Washington, USA : 3 November 2009. : Nov 2009, Seattle, WA.