# Four basic models of GM(1, 1) and their suitable sequences

> Research article (Grey Systems Theory and Application, 2015) · cited 51× · AI/ML

**Wikidata**: [openalex:W1604975429](https://www.wikidata.org/wiki/openalex:W1604975429)  
**Source**: https://4ort.xyz/entity/four-basic-models-of-gm-1-1-and-their-suitable-sequences
