1. The histopathologic basis in endodontic treatment;Langeland,1967
2. Microscopic and macroscopic investigation on results of mechanical preparation of root canals;Gutierrez;Oral Surg,1968
3. Endodontics: the adolescent patient.;Clem,1969
4. Cleaning and shaping the root canal;Schilder,1974
5. Precurved files and incremental instrumentation for root canal enlargement;Weine;J Can Dent Assoc,1970