M. Dehmer, and F. Emmert-Streib. Complex (1), volume 4 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 707-714. Springer, (2009)
F. Emmert-Streib, and M. Dehmer. Complex (1), volume 4 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, page 715-723. Springer, (2009)