Nikola Vlahovic and  Blazenka Knezevic and  Petra Batalic,  Implementing Delivery Drones in Logistics Business Process: Case of Pharmaceutical Industry.   journal   = {International Journal of Mechanical and Industrial Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2016, vol. 120(12). 4026 - 4031
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10006715.