1. Die Technik und Übung der allgemeinen und speziellen Bionator-therapie;Balters;Quintessenz,1964
2. Skeletal and dentoalveolar changes in patients treated with a bionator during prepubertal and pubertal growth;Janson,1983
3. A comparative analysis of Class II treatments;Johnston,1986
4. The theoretical concept underlying the treatment with functional correctors;Fränkel;Trans Eur Orthod Soc,1966
5. The treatment of Class II, Division 1 malocclusion with functional correctors;Fränkel;Am J Orthod,1969