Souza, Uéverton, Fábio Protti, Maise da Silva, and Dieter Rautenbach.
"Multivariate Investigation of NP-Hard Problems: Boundaries Between Parameterized Tractability and Intractability." <em>Anais do XXVIII Concurso de Teses e Dissertações,
Recife, 2015</em>. SBC, 2015,  
pp.19-24.