Validating results of human-based electronic services leveraging multiple reviewers. - Robert Kern; Cordula Bauer; Hans Thies; Gerhard Satzger (AMCIS, 2010)

Quality Assurance for Human-Based Electronic Services: A Decision Matrix for Choosing the Right Approach. - Robert Kern; Hans Thies; Cordula Bauer; Gerhard Satzger (ICWE Workshops, 2010)