# Crude oil spectral signatures and empirical models to derive API gravity

> Research article (Fuel, 2018) · cited 61× · AI/ML

**Wikidata**: [openalex:W2896872337](https://www.wikidata.org/wiki/openalex:W2896872337)  
**Source**: https://4ort.xyz/entity/crude-oil-spectral-signatures-and-empirical-models-to-derive-api-gravity