1. The Biologic Aspect of Root Canal Therapy;Blayney;D. Items Interest,1927
2. Correlation of Positive Cultures With the Prognosis for Root Canal Treatment;Engström;Odont. revy,1964
3. The Prognosis of Pulp and Root Canal Therapy; a Clinical and Radiographic Follow-up Examination;Grahnén;Odont. revy,1961
4. Why Root Canals Should Be Filled to the Dentinocemental Junction;Grove;J. Am. Dent. A,1930
5. Histologische Untersuchungen an vitalextirpierten Zähnen;Ketterl;Stoma,1963