1. Artisan Software Tools. (accessed in April 1999) Real-time studio: The rational alternative. Available from Artisan Software Tools over the Internet, http://www.artisansw.com/rtdialogue/pdfs/rational.pdf
2. Di Battista, G., Eades, P., Tamassia, R., Tollis, I. G. (1994) Algorithms for drawing graphs: an annotated bibliography. Computational Geometry Theory and Application, (4), 235–282
3. Di Battista, G., Eades, P., Tamassia, R., Tollis, I. G. (1999) Graph Drawing: Algorithms for the Visualization of Graphs. Prentice Hall
4. Biedl, T., Kaufman, M. (1997) Area-efficient static and incremental graph drawings. In: Proceedings of the 5th. Annual European Symposium on Algorithms 1284, Springer-Verlag, 37–52
5. Biedl, T. C., Madden, B. P., Tollis, I. G. (1997) The three-phase method: A unified approach to orthogonal graph drawing. In: G. Di Battista (ed.) Graph Drawing’ 97, Lecture Notes in Computer Science 1353, Springer-Verlag, 391–402