1 ) Hotz, M.: Pre- and early postoperative growthguidance in cleft lip and palate cases by ma xillary orthopedics ( an alternative procedure to primary bone grafting). Cleft Palate J, 6: 368-372, 1969.
2) Hotz, M.: Aims and possibilities of pre- an d postsurgical orthopedic treatment in uni- and bilat e ral clefts. Trans Eur Orthod Soc, 553-558, 1973.
3) Hotz, M., Perko, M.: Early management of bilateral total cleft lip and palate. Scand J Plast Reconstr Surg, 8: 104-108, 1974.
4) Hotz, M., Gnoinski, W.: Comprehensive care of cleft lip and palate children at Zurich University: A preliminary report. Am J Orthod, 70: 481-504. 1976.
5) Hotz, M., Gnoinski, W.: Effects of early maxillary orthopaedics in coordination with delayed surgery for cleft lip and palate. J Maxillofac Surg, 7: 201-210, 1979.