Introduction
In: Significs, mathematics and semiotics. The signific movement in the Netherlands. Proceedings of the International Conference Bonn, 19 ‑ 21 November 1986 / Heijerman, Erik; Schmitz, H. W. (Eds.). - Münster: Nodus Publikationen, 1991, pp. 7 - 18
1991book article/chapter in collection
Communication Studies