Conserving Corporate Knowledge for Crankshaft Design. - Otto Kühn; Björn Höfling (IEA/AIE, 1994)

From Natural Language Documents to Sharable Product Knowledge: A Knowledge Engineering Approach. - Dietmar F. Rösner; Brigitte Grote; Knut Hartmann; Björn Höfling (J. Univers. Comput. Sci., 1997)

From Natural Language Documents to Sharable Product Knowledge: A Knowledge Engineering Approach. - Dietmar F. Rösner; Brigitte Grote; Knut Hartmann; Björn Höfling (Information Technology for Knowledge Management, 1998)

Towards an Ontology for Substances and Related Actions. - Björn Höfling; Thorsten Liebig; Dietmar F. Rösner; Lars Webel (EKAW, 1999)