Information Filtering and Information Retrieval with the Web Filtering Toolbar.

Josep Silva Information Filtering and Information Retrieval with the Web Filtering Toolbar. 125-136 2009 235 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2009.03.008 db/journals/entcs/entcs235.html#Silva09