@misc{indiciaeae30f7f740a1,
  title = {Secular polar motion observed by GRACE},
  author = {Ki-Weon Seo and Jae-Seung Kim and Kookhyoun Youm and Jianli Chen and Clark R. Wilson},
  url = {https://ntrs.nasa.gov/citations/22664923713090},
  note = {Source identifier: 22664923713090}
}