1. Chua, L. O. [1989] Symmetry principles in nonlinear circuits, Vol. I, p. 75, In: Darvas, G., Nagy, D., eds., Symmetry of Structure, Extended Abstracts, Budapest: ISIS-Symmetry, Vols. I–II, 656 pp.
2. Darvas, G. [1987] Level theories in philosophy and physics — Exploring and interpreting the structure of matter, Vol. 5,Part 3, pp. 76–79, In: 8th International Congress of Logic, Methodology, and Philosophy of Science, Abstracts, Moscow: Nauka.
3. Darvas, G. [1995] ISIS-Symmetry: Looking for truth and beauty, Symmetry: Culture and Science, 6,1, 9–17.
4. Darvas, G. [1996] Dichotomies and trichotomies in the Eastern and Western cultures, pp. 91–99, In: Ogawa, T., Miura, K., Masunari, T. and Nagy, D., eds., Katachi U Symmetry, Tokyo: Springer Verlag, xxiv + 417 pp.
5. Darvas, G., Nagy, D. [1994] Wasan versus Western mathematics: Asymmetry of the brain and education, pp. 321–324, In: Ogawa, T., ed., Katachi U Symmetry, Extended Abstracts, Tsukuba: University of Tsukuba, xiv + 360 pp.