Gary Marchionini Tefko Saracevic Jack Carroll Donald H. Kraft William R. Hersh Josiane Mothe Justin Zobel Peter Hernon Candy Schwartz 1-2 2007 43 Inf. Process. Manage. 1 http://dx.doi.org/10.1016/j.ipm.2006.05.012 db/journals/ipm/ipm43.html#MarchioniniSCKHMZHS07