1. Revascularization and bone healing after anterior maxillary osteotomy: A study using adult rhesus monkeys;Bell;J. Oral Surg.,1969
2. Bell, W. H.: The effect of palatal flap design on anterior and posterior maxillary osteotomies. Unpublished animal studies.
3. Surgical operations on the alveolar ridge to correct occlusal abnormalities;Köle;Oral Surg., Oral Med. & Oral Path.,1959
4. Immediate closure of labial diastema by frenectomy and maxillary ostectomy;Clark;J. Oral Surg.,1968
5. Principles of retention and avoidance of posttreatment relapse;Reitan;Am. J. Orthodontics,1969