Bericht / Paul Scherrer Inst. N 03-19 : Non-destructive determination of martensitic content by means of magnetic methods / M.Niffenegger, R.Bauer, D.Kalkhof, 2003. - 33 p. - Текст : непосредственный.
Niffenegger M. change of the Seebeck coefficient due to neutron irradiation and thermal fatigue of nuclear reactor pressure vessel steel and its application to the monitoring of material degradation / M.Niffenegger,K.Reichlin,D.Kalkhof, 2002. - 28 p. - Текст : непосредственный.
Bericht / Paul Scherrer Inst. N 03-03 : Fruherkennung von mikrostrukturellen Anderungen bei Ermudung in nichtrostenden austenitischen Stahlen / D.Kalkhof,M.Niffenegger,M.Grosse, 2003. - 56 S. - Текст : непосредственный.