1. Experiences on widening the median maxillary suture;Thörne;Trans Eur Orthod Soc,1956
2. Rapid expansion of the maxillary dental arch and nasal cavity by opening the mid-palatal suture;Haas;Angle Orthod,1961
3. Midpalatal suture expansion studies by the implant method over a seven-year period;Krebs;Trans Eur Orthod Soc,1964
4. Anatomical changes induced by splitting of the midpalatal suture;Davis;Angle Orthod,1969
5. Skeletal and dental changes accompanying rapid mid-palatal suture opening;Wertz;Am J Orthod,1970