@misc{indiciaececc00643c07,
  title = {Atomic displacements in ferroelectric trigonal and orthorhombic boracite structures},
  author = {Eric Dowty and J. R. Clark},
  year = {1972},
  doi = {10.1016/0038-1098(72)90063-4},
  url = {https://pubs.usgs.gov/publication/70010263},
  note = {Source identifier: 70010263}
}