@article{teach_repeat, 
    author={F. Gao and L. Wang and K. Wang and W. Wu and B. Zhou and L. Han and S. Shen}, 
    journal={IEEE Robotics and Automation Letters}, 
    title={Optimal Trajectory Generation for Quadrotor Teach-and-Repeat}, 
    year={2019}, 
    volume={4}, 
    number={2}, 
    pages={1493-1500},
    month={April}
}