Integer programming based approaches for multi-trip location routing

Macedo, R., Ramos, B., Alves, C., de carvalho, J. V., Hanafi, S., & Mladenović, N. (2016). Integer programming based approaches for multi-trip location routing. In Lecture Notes in Economics and Mathematical Systems (Vol. 682, pp. 79–90). Springer Verlag. https://doi.org/10.1007/978-3-319-20430-7_11