@misc{indiciae727ecec87290,
  title = {The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica},
  author = {A. Meloni and L. Cafarella and P. De Michelis and R. Tozzi},
  year = {2007},
  doi = {10.3133/ofr20071047srp071},
  url = {https://pubs.usgs.gov/publication/ofr20071047SRP071},
  note = {Source identifier: ofr20071047SRP071}
}