@article{Wang2018Terrain,
    author = {Z. Wang and Q. Wang and B. Moran and M. Zukerman},
    title = {Terrain Constrained Path Planning for  Long-haul Cables},
    journal = {Optics Express},
    volume = {27},
    number = {6},
    pages = {8221-8235},
    month = {March},
    year = {2019}
}