Mauro Henrique Mulati and Flávio Keidi Miyazawa. 2017.
 Tighter Analysis of an Approximation for the Cumulative VRP. In <em>Proceedings of the 2nd Theory of Computation Meeting</em>, July 02, 2017, São Paulo, Brasil. SBC, Porto Alegre, Brasil, 100-103. DOI: <a href="https://doi.org/10.5753/etc.2017.3202">https://doi.org/10.5753/etc.2017.3202</a>.