# Extraction of Urban Built-Up Areas Using Nighttime Light (NTL) and Multi-Source Data: A Case Study in Dalian City, China

> Research article (Land, 2023) · cited 17× · AI/ML

**Wikidata**: [openalex:W4321107767](https://www.wikidata.org/wiki/openalex:W4321107767)  
**Source**: https://4ort.xyz/entity/extraction-of-urban-built-up-areas-using-nighttime-light-ntl-and-multi-source-data-a-case-study-in-dalian-city-china