@misc{indiciaebc007ab27beb,
  title = {Space Technology for Directly Imaging and Characterizing Exo-Earths},
  author = {Crill, Brendan P. and Siegler, Nicholas},
  year = {2017},
  url = {https://ntrs.nasa.gov/citations/20190026863},
  note = {Source identifier: 20190026863}
}