@article {IOPORT.50012530,
    author       = {Eberli, Daniel and Scaramuzza, Davide and Weiss, Stephan and Siegwart, Roland},
    title        = {Vision based position control for mavs using one single circular landmark},
    year         = {2011},
    journal      = {Journal of Intelligent and Robotic Systems},
    volume       = {61},
    number       = {1-4},
    pages        = {495-512},
    doi          = {10.1007/s10846-010-9494-8},
    identifier   = {50012530},
}