An Improved Ant Colony Optimization Based Algorithm for the Capacitated Arc Routing Problem
Luís Alberto Santos, João Coutinho Rodrigues, John Current
Transportation Research: Part B, vol. 44, 2010, p. 246-266.

Implementing a Multi-vehicle Multi-route Spatial Decision Support System for Efficient Trash Collection in Portugal
Luís Alberto Santos, João Coutinho Rodrigues, John Current
Transportation Research Part A: Policy And Practice, vol. 42, 2008, p. 922-934.