@misc{indiciae1cec50a470bb,
  title = {Monitoring urban subsidence based on SAR lnterferometric point target analysis},
  author = {Y. Zhang and Jiahua Zhang and W. Gong and Z. Lu},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70035405},
  note = {Source identifier: 70035405}
}