1. Hader, M., Baur, S.: Cargo Drones: the future of parcel delivery (2020). https://www.rolandberger.com/en/Point-of-View/Cargo-drones-The-future-of-parcel-delivery.html#:~:text=in%20North%20Carolina.-,Transportation%20of%20air%20freight,more%20often%20with%20more%20flexibility
2. High payload drone for delivery and transport, Airborne Drones. https://www.airbornedrones.co/delivery-and-transport/
3. Willems, D.: Cargo transportation takes drone technologies to the next level (2020). https://umsskeldar.aero/cargo-transportation-takes-drone-technologies-to-the-next-level/
4. Cargo drones, Drones for tomorrows air cargo. https://www.iata.org/en/programs/cargo/cargo-drones/
5. Kellermann, R., Biehle, T., Fischer, L.: Drones for parcel and passenger transportation: a literature review (2020). https://doi.org/10.1016/j.trip.2019.100088