with Keeler, M. A. , 2006, Building a pragmatic methodology for KR tool research and development, in P. Hitzler & P. Øhrstrøm (eds.), Conceptual structures: inspiration and application, Dordrecht, Springer, pp. 314-330.
, 2004, An exportable cgif module from the cp environment: a pragmatic approach, in K. E. Wolff, H. D. Pfeiffer & H. Delugach (eds.), Conceptual structures at work, Dordrecht, Springer, pp. 319-332.
with Wolff, K. , Delugach, H. (eds) , 2004a, Conceptual structures at work: 12th international conference on conceptual structures, Springer, Dordrecht.