# First Observation of the Earth's Permanent Free Oscillations on Ocean Bottom Seismometers

> Research article (Geophysical Research Letters, 2017) · cited 35× · AI/ML

**Wikidata**: [openalex:W2763575851](https://www.wikidata.org/wiki/openalex:W2763575851)  
**Source**: https://4ort.xyz/entity/first-observation-of-the-earth-s-permanent-free-oscillations-on-ocean-bottom-seismometers