TY  - RPRT
TI  - Head orientation measured with a video system.
AU  - J E Bechtold
AU  - P Ridl
AU  - R P Hubbard
AU  - J Vorro
PY  - 1983
DO  - 10.1115/1.3138441
UR  - https://pubmed.ncbi.nlm.nih.gov/6645453/
ID  - 6645453
ER  -