, 2004, "Particles" and "waves" as understood by temporal concept analysis, in K. E. Wolff, H. D. Pfeiffer & H. Delugach (eds.), Conceptual structures at work, Dordrecht, Springer, pp. 126-141.
with Pfeiffer, H. D. , Delugach, H. (eds) , 2004a, Conceptual structures at work: 12th international conference on conceptual structures, Springer, Dordrecht.