# Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China

> Research article (Remote Sensing, 2020) · cited 32× · AI/ML

**Wikidata**: [openalex:W3047146639](https://www.wikidata.org/wiki/openalex:W3047146639)  
**Source**: https://4ort.xyz/entity/preliminary-selection-and-characterization-of-pseudo-invariant-calibration-sites-in-northwest-china