@misc{indiciae1b955417ea8d,
  title = {Fractal characterization of fracture surfaces in concrete},
  author = {V. E. Saouma and Christopher C. Barton and N. A. Gamaleldin},
  year = {1990},
  doi = {10.1016/0013-7944(90)90182-g},
  url = {https://pubs.usgs.gov/publication/70016076},
  note = {Source identifier: 70016076}
}