Multilevel System as Multigraph. - Waldemar Korczynski; José de Jesús Cruz Guzmán; Zbigniew Oziewicz (International Conference on Computational Science, 2003)

Symbolic Calculation for Frölicher-Nijenhuis R-Algebra for Exploring in Electromagnetic Field Theory. - José de Jesús Cruz Guzmán; Zbigniew Oziewicz (International Conference on Computational Science, 2004)

Network of Networks. - José de Jesús Cruz Guzmán; Zbigniew Oziewicz (International Conference on Computational Science, 2004)