GreenWiki: a tool to support users' assessment of the quality of Wikipedia articles. - Daniel Hasan Dalip; Raquel Lara dos Santos; Diogo Rennó Rocha de Oliveira; Valéria Freitas Amaral; Marcos André Gonçalves; Raquel Oliveira Prates; Raquel Cardoso de Melo Minardi; Jussara Marques de Almeida (JCDL, 2011)