1. Conducting The Failure Examination;Vander Voort;Met. Eng. Q.,1975
2. Fractography—A New Tool for Metallurgical Research;Zapffe;Trans. ASM,1945
3. Fractography: The Study of Fractures at High Magnification;Zapffe;Iron Age,1948
4. Fractographic Registrations of Fatigue;Zapffe;Trans. ASM,1951
5. Fractography as a Mineralogical Technique;Zapffe;Am. Mineralog.,1951