# Risk assessment for clearing and grading process of a natural gas pipeline project: An extended TOPSIS model with Pythagorean fuzzy sets for prioritizing hazards

> Research article (Human and Ecological Risk Assessment An International Journal, 2018) · cited 96× · AI/ML

**Wikidata**: [openalex:W2901569205](https://www.wikidata.org/wiki/openalex:W2901569205)  
**Source**: https://4ort.xyz/entity/risk-assessment-for-clearing-and-grading-process-of-a-natural-gas-pipeline-project-an-extended-topsis-model-with-pythago