Experimenting with Aesthetics-Based Graph Layout. - Helen C. Purchase; David A. Carrington; Jo-Anne Allder (Diagrams, 2000)

User Preference of Graph Layout Aesthetics: A UML Study. - Helen C. Purchase; Jo-Anne Allder; David A. Carrington (GD, 2000)

Empirical Evaluation of Aesthetics-based Graph Layout. - Helen C. Purchase; David A. Carrington; Jo-Anne Allder (Empir. Softw. Eng., 2002)

Graph Layout Aesthetics in UML Diagrams: User Preferences. - Helen C. Purchase; Jo-Anne Allder; David A. Carrington (J. Graph Algorithms Appl., 2002)