@misc{indiciae97a90b7e038f,
  title = {Synopsis of strontium isotope variations in groundwater at Aspo, southern Sweden},
  author = {Z. E. Peterman and B. Wallin},
  year = {1999},
  doi = {10.1016/s0883-2927(99)00033-5},
  url = {https://pubs.usgs.gov/publication/70021234},
  note = {Source identifier: 70021234}
}