1. Radiographic evaluation of endodontic therapy and the influence of observer variation;Reit;Scand J Dent Res,1983
2. Endodontic success—who's reading the radiographic?;Goldman;Oral Surg,1972
3. Reliability of radiographic interpretations;Goldman;Oral Surg,1974
4. The frequency, technical standard and results of endodontic therapy;Molven,1974
5. Reading the radiograph: a comparison of viewing techniques;Antrim;J Endodon,1983