Gabriel Oliveira, Natércia Batista, Michele Brandão, and Mirella Moro. 2018.
 Using Heterogeneous Networks to Measure the Strength of Relationships on GitHub. In <em>Proceedings of the 33rd Brazilian Symposium on Databases</em>, August 25, 2018, Rio de Janeiro, Brasil. SBC, Porto Alegre, Brasil, 283-288. DOI: <a href="https://doi.org/10.5753/sbbd.2018.22244">https://doi.org/10.5753/sbbd.2018.22244</a>.