# Optical calibration of the M4 prototype toward the final unit

> Research article (eScholarship (California Digital Library), 2015) · cited 10× · AI/ML

**Wikidata**: [openalex:W2490291593](https://www.wikidata.org/wiki/openalex:W2490291593)  
**Source**: https://4ort.xyz/entity/optical-calibration-of-the-m4-prototype-toward-the-final-unit