Design and Implementation of a World Wide Web Accessible Database for the Swedish ICD-10 Primary Care Version Using a Concept System Approach. - Håkan Petersson; Gunnar H. Nilsson; Hans Åhlfeldt; Britt-Gerd Malmberg; Ove Wigertz (AMIA, 1997)

Semantic Modeling of a Traditional Classification: Results and Implications. - Håkan Petersson; Gunnar H. Nilsson; Hans Åhlfeldt; Britt-Gerd Malmberg; Ove Wigertz (MedInfo, 1998)