Artem Katasonov Markku Sakkinen Information Quality Assessment of a Yellow-Pages Location-Based Service. 320-326 2003 conf/compsac/2003 COMPSAC http://csdl.computer.org/comp/proceedings/compsac/2003/2020/00/20200320abs.htm db/conf/compsac/compsac2003.html#KatasonovS03