1. K. Donath (1993 ) Preparation of Histologic Sections by Cutting-Grinding Technique for Hard Tissue and Other Materials not Suitable to be Sectioned by Routine Methods , 1 -16 . Norderstedt: EXAKT-Kulzer-Publication.
2. C.B. Johansson (1991 ) On tissue reactions to metal implants. PhD Thesis, Department of Biomaterials/Handicap Research, University of Goteborg, Sweden.