1. Therapy of the incipient bifurcation involvement;Goldman;J. Periodont.,1958
2. Bifurcation involvement;Everett;Oregon St. Dent. J.,1959
3. Clinical Periodontology;Glickmann,1964
4. The infrabony pocket; classification and treatment;Goldman;J. Periodont.,1958
5. Advanced Periodontal Disease;Prichard,1965