Yariv Aridor David Carmel Yoëlle S. Maarek Aya Soffer Ronny Lempel Knowledge encapsulation for focused search from pervasive devices. 25-46 2002 20 ACM Trans. Inf. Syst. 1 http://doi.acm.org/10.1145/503104.503106 db/journals/tois/tois20.html#AridorCMSL02