TY  - RPRT
TI  - [The external fixation. Its historical development, its possibilities for use, various examples for use with special reference to external fixation according to Raoul-Hoffmann and the halo fixation].
AU  - R von Welser
AU  - P Wolff
PY  - 1981
UR  - https://pubmed.ncbi.nlm.nih.gov/7311763/
ID  - 7311763
ER  -