@misc{indiciaec10a267f0e0a,
  title = {Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, United States},
  author = {P.B. McMahon and K.F. Dennehy and B. W. Bruce and J.K. Böhlke and R. L. Michel and J.J. Gurdak and D.B. Hurlbut},
  year = {2006},
  doi = {10.1029/2005wr004417},
  url = {https://pubs.usgs.gov/publication/70030698},
  note = {Source identifier: 70030698}
}