Iko Pramudiono Takahiko Shintani Katsumi Takahashi Masaru Kitsuregawa User Behavior Analysis of Location Aware Search Engine. 139-145 2002 conf/mdm/2002 Mobile Data Management http://computer.org/proceedings/mdm/1500/15000139abs.htm db/conf/mdm/mdm2002.html#PramudionoSTK02