[1] Dukowitz, Z.:What types of drones are there? A guide to all the different drone types on the market. https://uavcoach.com/types-of-drones (2019)
[2] Otto, A., Agatz, N., Campbell, J., Golden, B., Pesch, E.:Optimization approaches for civil applications of unmanned aerial vehicles (UAVs) or aerial drones:a survey. Networks 72(4), 411-458(2018)
[3] Agatz, N., Bouman, P., Schmidt, M.:Optimization approaches for the traveling salesman problem with drone. Transp. Sci. 52(4), 965-981(2018)
[4] Liu, Y., Liu, Z., Shi, J., Wu, G., Pedrycz, W.:Two-echelon routing problem for parcel delivery by cooperated truck and drone. IEEE Trans. Syst Man Cybern. Syst. (2020)
[5] JD. Jd.com's drone delivery program takes flight in rural china. https://corporate.jd.com/whatIsNewDetail?contentCode=6IhXLeeSAFLjLLlyuZatDA%3D%3D, 2016
[6] Laporte, G.:Fifty years of vehicle routing. Transp. Sci. 43(4), 408-416(2009)
[7] Vidal, T., Laporte, G., Matl, P.:A concise guide to existing and emerging vehicle routing problem variants. Eur. J. Oper. Res. 286, 401-416(2019)
[8] Dantzig, G.B., Ramser, J.H.:The truck dispatching problem. Manag. Sci. 6(1), 80-91(1959)
[9] Murray, C.C., Chu, A.G.:The flying sidekick traveling salesman problem:optimization of droneassisted parcel delivery. Transp. Res. Part C Emerg. Technol. 54, 86-109(2015)
[10] Savuran, H., Karakaya, M.:Efficient route planning for an unmanned air vehicle deployed on a moving carrier. Soft Comput. 20(7), 2905-2920(2016)
[11] Ferrandez, S.M., Harbison, T., Weber, T., Sturges, R., Rich, R.:Optimization of a truck-drone in tandem delivery network using k-means and genetic algorithm. J. Ind. Eng. Manag. (JIEM) 9(2), 374-388(2016)
[12] Carlsson, J.G., Song, S.:Coordinated logistics with a truck and a drone. Manag. Sci. 64(9), 4052-4069(2018)
[13] Luo, Z., Liu, Z., Shi, J.:A two-echelon cooperated routing problem for a ground vehicle and its carried unmanned aerial vehicle. Sensors 17(5), 1144(2017)
[14] Poikonen, S., Wang, X., Golden, B.:The vehicle routing problem with drones:extended models and connections. Networks 70(1), 34-43(2017)
[15] Wang, X., Poikonen, S., Golden, B.:The vehicle routing problem with drones:several worst-case results. Optim. Lett. 11(4), 679-697(2017)
[16] Schermer, D., Moeini, M., Wendt, O.:A matheuristic for the vehicle routing problem with drones and its variants. Transp. Res. Part C Emerg. Technol. 106, 166-204(2019)
[17] Wang, Z., Sheu, J.-B.:Vehicle routing problem with drones. Transp. Res. Part B Methodol. 122, 350-364(2019)
[18] Sacramento, D., Pisinger, D., Ropke, S.:An adaptive large neighborhood search metaheuristic for the vehicle routing problem with drones. Transp. Res. Part C Emerg. Technol. 102, 289-315(2019)
[19] Khoufi, I., Laouiti, A., Adjih, C.:A survey of recent extended variants of the traveling salesman and vehicle routing problems for unmanned aerial vehicles. Drones 3(3), 66(2019)
[20] Chung, S.H., Sah, B., Lee, J.:Optimization for drone and drone-truck combined operations:a review of the state of the art and future directions. Comput. Oper. Res. 123, 105004(2020)
[21] Baldacci, R., Battarra, M., Vigo, D.:Routing a Heterogeneous Fleet of Vehicles. The Vehicle Routing Problem:Latest Advances and New Challenges, pp. 3-27. Springer, Berlin (2008)
[22] Ha, Q.M., Deville, Y., Pham, Q.D., Ha, M.H.:On the min-cost traveling salesman problem with drone. Transp. Res. Part C Emerg. Technol. 86, 597-621(2018)
[23] Rich, R.:Inverting the truck-drone network problem to find best case configuration. Adv. Oper. Res. 2020, (2020)
[24] Roberti, R., Ruthmair, M.:Exact methods for the traveling salesman problem with drone. Optim. Online 55, 315-335(2019)
[25] Gonzalez-R, P.L., Canca, D., Andrade-Pineda, J.L., Calle, M., Leon-Blanco, J.M.:Truck-drone team logistics:a heuristic approach to multi-drop route planning. Transp. Res. Part C Emerg. Technol. 114, 657-680(2020)
[26] Schermer, D., Moeini, M., Wendt, O.:A branch-and-cut approach and alternative formulations for the traveling salesman problem with drone. Networks 76, 164-186(2020)
[27] Liu, J., Guan, Z., Xie, X.:Truck and drone in tandem route scheduling under sparse demand distribution. In:20188th International Conference on Logistics, Informatics and Service Sciences (LISS), IEEE, pp. 1-6, (2018)
[28] Dell'Amico, M., Montemanni, R., Novellani, S.:Drone-assisted deliveries:new formulations for the flying sidekick traveling salesman problem. Optim. Lett. 15, 1-32(2019)
[29] Murray, C.C., Raj, R.:The multiple flying sidekicks traveling salesman problem:parcel delivery with multiple drones. Transp. Res. Part C Emerg. Technol. 110, 368-398(2020)
[30] Poikonen, S., Golden, B.:Multi-visit drone routing problem. Comput. Oper. Res. 113, 104802(2020)
[31] Salama, M., Srinivas, S.:Joint optimization of customer location clustering and drone-based routing for last-mile deliveries. Transp. Res. Part C Emerg. Technol. 114, 620-642(2020)
[32] Karak, A., Abdelghany, K.:The hybrid vehicle-drone routing problem for pick-up and delivery services. Transp. Res. Part C Emerg. Technol. 102, 427-449(2019)
[33] Liu, Y., Luo, Z., Liu, Z., Shi, J., Cheng, G.:Cooperative routing problem for ground vehicle and unmanned aerial vehicle:the application on intelligence, surveillance, and reconnaissance missions. IEEE Access 7, 63504-63518(2019)
[34] Jeong, H.Y., Song, B.D., Lee, S.:Truck-drone hybrid delivery routing:payload-energy dependency and no-fly zones. Int. J. Prod. Econ. 214, 220-233(2019)
[35] FAA. No drone zone. https://www.faa.gov/UAS/resources/community_engagement/no_drone_zone (2019)
[36] Schermer, D., Moeini, M., Wendt, O.:A hybrid VNS/Tabu search algorithm for solving the vehicle routing problem with drones and en route operations. Comput. Oper. Res. 109, 134-158(2019)
[37] Wang, D., Peng, H., Jingxuan, D., Zhou, P., Deng, T., Menglan, H.:Routing and scheduling for hybrid truck-drone collaborative parcel delivery with independent and truck-carried drones. IEEE Internet Things J. 6(6), 10483-10495(2019)
[38] Huang, H., Savkin, A.V., Huang, C.:Scheduling of a parcel delivery system consisting of an aerial drone interacting with public transportation vehicles. Sensors 20(7), 2045(2020)
[39] Kitjacharoenchai, P., Min, B.C., Lee, S.:Two echelon vehicle routing problem with drones in last mile delivery. Int. J. Prod. Econ. 225, 107598(2020)
[40] Faiz, T.I., Vogiatzis, C. et al.:Robust two echelon vehicle and drone routing for post disaster humanitarian operations. arXiv preprint arXiv:2001.06456(2020)
[41] Li, H., Wang, H., Chen, J., Bai, M.:Two-echelon vehicle routing problem with time windows and mobile satellites. Transp. Res. Part B Methodol. 138, 179-201(2020)
[42] Bakir, I., Tiniç, G.:Optimizing drone-assisted last-mile deliveries:The vehicle routing problem with flexible drones. (2020)
[43] Ulmer, M.W., Thomas, B.W.:Same-day delivery with heterogeneous fleets of drones and vehicles. Networks 72(4), 475-505(2018)
[44] Popovic, D., Kovac, M., Bjelic, N.:A MIQP model for solving the vehicle routing problem with drones. (2019)
[45] Wikarek, J., Sitek, P., Zawarczynski, L.:An integer programming model for the capacitated vehicle routing problem with drones. In:International Conference on Computational Collective Intelligence. Springer, pp. 511-520(2019)
[46] Pugliese, L.D.P., Guerriero, F.:Last-mile deliveries by using drones and classical vehicles. In:International Conference on Optimization and Decision Science. Springer, pp. 557-565(2017)
[47] Kim, M., Matson, E.T.:A cost-optimization model in multi-agent system routing for drone delivery. In:International Conference on Practical Applications of Agents and Multi-Agent Systems. Springer, pp. 40-51(2017)
[48] Kitjacharoenchai, P., Ventresca, M., Moshref-Javadi, M., Lee, S., Tanchoco, J.M.A., Brunese, P.A.:Multiple traveling salesman problem with drones:mathematical model and heuristic approach. Comput. Ind. Eng. 129, 14-30(2019)
[49] Tavana, M., Khalili-Damghani, K., Santos-Arteaga, F.J., Zandi, M.H.:Drone shipping versus truck delivery in a cross-docking system with multiple fleets and products. Expert Syst. Appl. 72, 93-107(2017)
[50] Ham, A.M.:Integrated scheduling of m-truck, m-drone, and m-depot constrained by time-window, drop-pickup, and m-visit using constraint programming. Transp. Res. Part C Emerg. Technol. 91, 1-14(2018)
[51] Dayarian, I., Savelsbergh, M., Clarke, J.-P.:Same-day delivery with drone resupply. Transp. Sci. 54(1), 229-249(2020)
[52] Pina-Pardo, J.C., Silva, D.F., Smith, A.E.:The traveling salesman problem with release dates and drone resupply. Comput. Oper. Res. 129, 105170(2021)
[53] Peng, K., Jingxuan, D., Fang, L., Sun, Q., Dong, Y., Zhou, P., Menglan, H.:A hybrid genetic algorithm on routing and scheduling for vehicle-assisted multi-drone parcel delivery. IEEE Access 7, 49191-49200(2019)
[54] Chiang, W.C., Li, Y., Shang, J., Urban, T.L.:Impact of drone delivery on sustainability and cost:realizing the UAV potential through vehicle routing optimization. Appl. Energy 242, 1164-1175(2019)
[55] Das, D.N., Sewani, R., Wang, J., Tiwari, M.K.:Synchronized truck and drone routing in package delivery logistics. IEEE Trans. Intell. Transp. Syst. (2020)
[56] Deng, P., Amirjamshidi, G., Roorda, M.:A vehicle routing problem with movement synchronization of drones, sidewalk robots, or foot-walkers. Transp. Res. Proc. 46, 29-36(2020)
[57] Marinelli, M., Caggiani, L., Ottomanelli, M., Dell'Orco, M.:En route truck-drone parcel delivery for optimal vehicle routing strategies. IET Intell. Trans. Syst. 12(4), 253-261(2017)
[58] Luo, Z., Liu, Z., Shi, J., Wang, Q., Zhou, T., Liu, Y.:The mathematical modeling of the two-echelon ground vehicle and its mounted unmanned aerial vehicle cooperated routing problem. In:2018 IEEE Intelligent Vehicles Symposium (IV). IEEE, pp. 1163-1170(2018)
[59] Chang, Y.S., Lee, H.J.:Optimal delivery routing with wider drone-delivery areas along a shorter truck-route. Expert Syst. Appl. 104, 307-317(2018)
[60] Yurek, E.E., Ozmutlu, H.C.:A decomposition-based iterative optimization algorithm for traveling salesman problem with drone. Transp. Res. Part C Emerg. Technol. 91, 249-262(2018)
[61] Peng, K., Liu, W., Sun, Q., Ma, X., Menglan, H., Wang, D., Liu, J.:Wide-area vehicle-drone cooperative sensing:opportunities and approaches. IEEE Access 7, 1818-1828(2018)
[62] Schermer,D.,Moeini,M.,Wendt,O.:.Algorithmsforsolvingthevehicleroutingproblemwithdrones. In:Asian Conference on Intelligent Information and Database Systems. Springer, pp. 352-361, (2018)
[63] Bouman, P., Agatz, N., Schmidt, M.:Dynamic programming approaches for the traveling salesman problem with drone. Networks 72(4), 528-542(2018)
[64] Cri? san, G.C., Nechita, E.:On a cooperative truck-and-drone delivery system. Proc. Computer Sci. 159, 38-47(2019)
[65] Kim, S., Moon, I.:Traveling salesman problem with a drone station. IEEE Trans. Syst. Man Cybern. Syst. 49(1), 42-52(2018)
[66] Poikonen, S., Golden, B., Wasil, E.A.:A branch-and-bound approach to the traveling salesman problem with a drone. INFORMS J. Comput. 31(2), 335-346(2019)
[67] Kitjacharoenchai, P., Lee, S.:Vehicle routing problem with drones for last mile delivery. Proc. Manuf. 39, 314-324(2019)
[68] Tang, Z., van Hoeve, W.J., Shaw, P.:A study on the traveling salesman problem with a drone. In:InternationalConferenceonIntegrationofConstraintProgramming,ArtificialIntelligence,andOperations Research. Springer, pp. 557-564(2019)
[69] Menglan, H., Liu, W., Peng, K., Ma, X., Cheng, W., Liu, J., Li, B.:Joint routing and scheduling for vehicle-assisted multidrone surveillance. IEEE Internet Things J. 6(2), 1781-1790(2018)
[70] Poikonen, S., Golden, B.:The mothership and drone routing problem. INFORMS J. Comput. 32(2), 249-262(2020)
[71] Ha, Q.M., Deville, Y., Pham, Q.D., Hà, M.H.:A hybrid genetic algorithm for the traveling salesman problem with drone. J. Heuristics 26(2), 219-247(2020)
[72] Vásquez, S.A., Angulo, G., Klapp, M.A.:An exact solution method for the tsp with drone based on decomposition. Comput. Oper. Res. 127, 105127(2021)
[73] Tamke, F., Buscher, U.:A branch-and-cut algorithm for the vehicle routing problem with drones. Transp. Res. Part B Methodol. 144, 174-203(2021)
[74] Boccia, M., Masone, A., Sforza, A., Sterle, C.:A column-and-row generation approach for the flying sidekick travelling salesman problem. Transp. Res. Part C Emerg. Technol. 124, 102913(2021)
[75] Bouman, P., Agatz, N., Schmidt, M.:Instances for the tsp with drone (and some solutions) (2018b)
[76] Agatz, N.A.H., Schmidt, M.E., Bouman, P.C.:Tsp-d-instances:Instances and some solutions. https://zenodo.org/record/35042#.Xy3-9CgzY2w (2015)
[77] Heidelberg,U.:Tsplib.http://www.iwr.uni-heidelberg.de/groups/comopt/software/TSPLIB95/XMLTSPLIB/instances/, 1995
[78] Reinelt, G.:Tsplib:a traveling salesman problem library. ORSA J. Comput. 3(4), 376-384(1991)
[79] Augerat, P., Christofides, E.:VRP problem instances 1995(1995)
[80] Solomon, M.M.:Algorithms for the vehicle routing and scheduling problems with time window constraints. Oper. Res. 35(2), 254-265(1987)
[81] Hahsler, M.:Traveling salesperson problem (TSP). https://www.rdocumentation.org/packages/TSP/versions/1.1-10(2020)
[82] Zenodo. Vehicle routing problem with drones instances. https://zenodo.org/record/1403150?fbclid=IwAR366Ezt5p-ax3Yf5P7uKHXkjh9pzdD4U-g8UKZI4gMprN6VKhFfFUpvIpA#.XJYfXdR6St9(2018)
[83] Archetti, C., Feillet, D., Mor, A., Speranza, M.G.:An iterated local search for the traveling salesman problem with release dates and completion time minimization. Comput. Oper. Res. 98, 24-37(2018)
