Himoro, Marcelo Yuji, Raíza Hanada, Marco Cristo, and Maria da Graça Campos Pimentel.
"An investigation of the relationship between the amount of extra-textual data and the quality of Wikipedia articles." <em>Anais do XIX Simpósio Brasileiro de Sistemas Multimídia e Web,
Salvador, 2013</em>. SBC, 2013,  
pp.333-336.