(:notitlegroup:) 

   @article{fischell19letters,
    title     = {Relative Autonomy and Navigation for Command and Control of Low-Cost
                Autonomous Underwater Vehicles},
    author    = {Erin M. Fischell and Nicholas R. Rypkema and Henrik Schmidt},
    journal   = {IEEE Robotics and Automation Letters},
    month     = {February},
    year      = {2019}}