M. Cengarle, and A. Knapp. 3rd Intl. Workshop on Critical Systems Development with UML (CSDUML '04, Proceedings)., page 85--99. Technische Universität München, (2004)
N. Truong, and J. Souquières. SAC '05: Proceedings of the 2005 ACM symposium on Applied computing, page 1546--1552. New York, NY, USA, ACM Press, (2005)
J. Hausmann, and S. Kent. SoftVis '03: Proceedings of the 2003 ACM symposium on Software visualization, page 169--178. New York, NY, USA, ACM Press, (2003)