The following publications are possibly variants of this publication:
- Heuristic algorithms for single and multiple depot vehicle routing problems with pickups and deliveriesGabor Nagy, Said Salhi. eor, 162(1):126-141, 2005. [doi]
- A heuristic method for the vehicle routing problem with mixed deliveries and pickupsNiaz A. Wassan, Gabor Nagy, Samad Ahmadi. scheduling, 11(2):149-161, 2008. [doi]
- A reactive tabu search algorithm for the vehicle routing problem with simultaneous pickups and deliveriesNiaz A. Wassan, A. Hameed Wassan, Gabor Nagy. jco, 15(4):368-386, 2008. [doi]