K H Ellsässer

Distributing databases: a model for global, shared care.

K H Ellsässer, J Nkobi, C O Köhler, 1995, Healthcare informatics : the business magazine for information and communication systems.

On the Necessity of Systematically Planning Clinical Tumor Documentation

R Haux, P Knaup, K H Ellsässer, 2001, Methods of Information in Medicine.