# SPI-Based Hybrid Hidden Markov–GA, ARIMA–GA, and ARIMA–GA–ANN Models for Meteorological Drought Forecasting

> Research article (Sustainability, 2021) · cited 45× · AI/ML

**Wikidata**: [openalex:W3212415952](https://www.wikidata.org/wiki/openalex:W3212415952)  
**Source**: https://4ort.xyz/entity/spi-based-hybrid-hidden-markovga-arimaga-and-arimagaann-models-for-meteorological-drought-forecasting