# Femtosecond covariance spectroscopy

> Research article (Proceedings of the National Academy of Sciences, 2019) · cited 22× · AI/ML

**Wikidata**: [openalex:W2898687553](https://www.wikidata.org/wiki/openalex:W2898687553)  
**Source**: https://4ort.xyz/entity/femtosecond-covariance-spectroscopy