EntityQ67919· pop 10· linked from 137 articlesHeide RühleSign in to saveGerman politicianRecent publications · Crossref5 total works indexedDo Norms Matter in Marketing Relationships? · 1992 · cited 2,573xThe Role of Dependence Balancing in Safeguarding Transaction-Specific Assets in Conventional Channels · 1988 · cited 2,174xA 4-item measure of depression and anxiety: Validation and standardization of the Patient Health Questionnaire-4 (PHQ-4) in the general population · 2010 · cited 2,114xGuidelines and definitions for research on epithelial–mesenchymal transition · 2020 · cited 1,901xTransaction Cost Analysis: Past, Present, and Future Applications · 1997 · cited 1,894xvia Crossref · CC0ConnectionsAlliance '90/The GreensEntityGermanyCountryEuropean UnionCategories1948 births20th-century women MEPs for Germany21st-century women MEPs for GermanyAlliance 90/The Greens MEPsBiography articles needing translation from German WikipediaBLP articles lacking sources from March 2011Living peopleMEPs for Germany 1999–2004MEPs for Germany 2004–2009MEPs for Germany 2009–2014Recipients of the Cross of the Order of Merit of the Federal Republic of Germany