TY  - RPRT
TI  - Calibration force levels for bone conduction vibrators.
AU  - B L Billings
AU  - M Winter
PY  - 1977
DO  - 10.1044/jshr.2004.653
UR  - https://pubmed.ncbi.nlm.nih.gov/604679/
ID  - 604679
ER  -