1. Variations in the Diametric Measurements of Root Canal Files and Corresponding Size of Silver Root Canal Points;Wais,1954
2. Microscopic Investigations of Root Canal File and Reamer Widths;Green;Oral Surg., Oral Med. & Oral Path,1957
3. A Preliminary Investigation of the Feasibility of Stainless Steel Files as Root Canal Filing Instruments and as a Root Canal Filling Material;Bucher,1958
4. A Study of Structural, Dimensional, and Physical Characteristics of Root Canal Instruments;Heuer,1959
5. Physical Properties of Carbon Steel Root Canal Files and Reamers;Craig;Oral Surg., Oral Med. & Oral Path,1962