@misc{indiciaebdeff1d2d27c,
  title = {A Semantic Basis for Proof Queries and Transformations},
  author = {Aspinall, David and Denney, Ewen W. and Luth, Christoph},
  year = {2013},
  url = {https://ntrs.nasa.gov/citations/20140005390},
  note = {Source identifier: 20140005390}
}