# Estimation of soil copper content based on fractional-order derivative spectroscopy and spectral characteristic band selection

> Research article (Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 2022) · cited 39× · AI/ML

**Wikidata**: [openalex:W4221119424](https://www.wikidata.org/wiki/openalex:W4221119424)  
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