# Identifying and Controlling Biases in Expert-Opinion Research: Guidelines for Variations of Delphi, Nominal Group Technique, and Focus Groups

> Research article (Journal of Management in Engineering, 2021) · cited 61× · AI/ML

**Wikidata**: [openalex:W3134754320](https://www.wikidata.org/wiki/openalex:W3134754320)  
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