Reuse of Complex Electronic Designs: Requirements Analysis for a CBR Application. - Ivo Vollrath (EWCBR, 1998)

Case-Based Reasoning Support for Online Catalog Sales. - Ivo Vollrath; Wolfgang Wilke; Ralph Bergmann (IEEE Internet Comput., 1998)

Generalized Cases: Representation and Steps Towards Efficient Similarity Assessment. - Ralph Bergmann; Ivo Vollrath (KI, 1999)

Handling Vague and Qualitative Criteria in Case-Based Reasoning Applications. - Ivo Vollrath (EWCBR, 2000)