1. Midfacial movement;Freihofer;Oral and Maxillofac Surg Clin North Am,1990
2. Quadrangular Le Fort I osteotomy;Keller;J Oral Maxillofac Surg,1990
3. Anatomy of ocular adnexa and orbit;Della Rocca,1987
4. Surgery of the Eyelids and Orbit: An Anatomical Approach;Lemke,1990
5. Surgical Anatomy of the Orbit;Zide,1985