Beyond Boxes and Lines: Creating and Empirically Evaluating Alternative Visualizations for Requirements Conceptual Models. - Sotirios Liaskos; Teodora Dundjerovic; Norah Alothman (ESEM, 2017)

Comparing alternative goal model visualizations for decision making: an exploratory experiment. - Sotirios Liaskos; Teodora Dundjerovic; Grace Gabriel (SAC, 2018)