1. Rapid expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture;Haas;Angle Orthod,1961
2. The treatment of maxillary deficiency by opening the midpalatal suture;Haas;Angle Orthod,1965
3. Palatal expansion: just the beginning of dentofacial orthopedics;Haas;Am J Orthod,1970
4. Midpalatal suture expansion studied by the implant method over a seven-year period;Krebs;Trans Eur Orthod Soc,1964
5. Anatomical changes induced by splitting the midpalatal suture;Davis;Angle Orthod,1969