A. Kuusik

Algorithms for multi-level graph planarity testing and layout

Patrick Healy, Ago Kuusik, P. Healy, 2004, Theor. Comput. Sci..

Knowledge level software visualization

E. Tyugu, A. Kuusik, D. Sidarkevičiūtė, 2007 .

The Vertex-Exchange Graph: A New Concept for Multi-level Crossing Minimisation

Patrick Healy, Ago Kuusik, P. Healy, 1999, GD.

The Vertex-Exchange Graph and its use in Multi-Level Graph Layout

Patrick Healy, Ago Kuusik, P. Healy, 1999 .

Characterization of Level Non-planar Graphs by Minimal Patterns

Patrick Healy, Sebastian Leipert, Ago Kuusik, 2000, COCOON.