@article{brock2014optimal,
  title={Optimal Control in Space and Time and the Management of Environmental Resources},
  author={Brock, William A and Xepapadeas, Anastasios and Yannacopoulos, AN},
  journal={Annu. Rev. Resour. Econ.},
  volume={6},
  number={1},
  pages={33--68},
  year={2014},
  publisher={Annual Reviews}
}