TY  - RPRT
TI  - [Model developments for calculating force systems for orthodontic treatment elements].
AU  - D Freudenreich
AU  - C Bourauel
AU  - D Kobe
AU  - D Drescher
AU  - B Nellen
PY  - 1997
UR  - https://pubmed.ncbi.nlm.nih.gov/9517239/
ID  - 9517239
ER  -