TY  - RPRT
TI  - Liquid level detector for use by the blind.
AU  - R W Roberts
AU  - G Jernakoff
PY  - 1973
DO  - 10.1063/1.1686093
UR  - https://pubmed.ncbi.nlm.nih.gov/4685104/
ID  - 4685104
ER  -