TY  - RPRT
TI  - Comparing three head-pointing systems using a single subject design.
AU  - J Angelo
AU  - C Deterding
AU  - J Weisman
PY  - 1991
DO  - 10.1080/10400435.1991.10132181
UR  - https://pubmed.ncbi.nlm.nih.gov/10147558/
ID  - 10147558
ER  -