1. The Theory of Error-Correcting Codes;MacWilliams,1977
2. Codierungstheorie;Willems,1999
3. Pseudonyme-ein Kompromiß zwischen Anonymisierung und Personenbezug;Pommerening,1995
4. Pseudonyms for cancer registry;Pommerening;Meth. Inf. Med.,1996
5. Pseudonyms for cancer registry;Pommerening;Yearbook of Medical Informatics,1997