Fábio Botler, Cristina G. Fernandes, and Juan Gutiérrez. 2018.
 On Tuza's conjecture for graphs with treewidth at most 6. In <em>Anais do III Encontro de Teoria da Computação</em>, julho 26, 2018, Natal, Brasil. SBC, Porto Alegre, Brasil. DOI: <a href="https://doi.org/10.5753/etc.2018.3141">https://doi.org/10.5753/etc.2018.3141</a>.