@misc{indiciae7f304eec665e,
  title = {Gain-loss study of lower San Pedro Creek and the San Antonio River, San Antonio, Texas, May-October 1999},
  author = {Darwin J. Ockerman},
  year = {2002},
  doi = {10.3133/ofr0223},
  url = {https://pubs.usgs.gov/publication/ofr0223},
  note = {Source identifier: ofr0223}
}